How to choose spark plugs by car make

Selection of spark plugs by car make

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A modern engine is a complex unit with many components and components. The proper operation of the internal combustion engine depends, among other things, on the correct selection of spark plugs.

Errors in this matter can lead to decreased vehicle dynamics and increased fuel consumption. The Avtomag store offers a simple and effective online service for selecting spark plugs by car make.

Automated search allows you to quickly select components for a specific vehicle model.

How to choose the right spark plugs according to the car make?

The presented components are used to ignite the air-fuel mixture in the engine cylinder. The stability of spark plugs depends on several factors:

materials used in the manufacturing process;
quality of assembly of components;
compliance of the parameters of the parts with the characteristics of the engine.

If the first two factors remain on the conscience of the spare parts manufacturer, then the correct selection of spark plugs according to the make and model of the car depends entirely on the car owner himself.

Manufacturers recommend certain types of components for specific vehicles and indicate this information in the technical documentation of the vehicle. In this case, you can select suitable spark plugs only if you have an instruction manual.

Sometimes spare parts are selected “by sample”: the available product is unscrewed from the engine and is thoroughly inspected for a unique number and marking.

However, this method can only be used if the owner is sure that the correct components from a reliable manufacturer were installed on the car.

The most reliable way is to use the special online service of the Automag store. To select spark plugs by car brand on our website, the owner only needs to know basic information about his vehicle:

brand,
model,
engine modification.

The user needs to enter this data in a special form, and the service will provide a list of suitable names within a few seconds. Automated search allows you to select spark plugs by car make in just a few seconds. The service eliminates the possibility of error and allows you to purchase spare parts with the required technical characteristics.

Selection of spark plugs by car brand: advantages

Among the advantages of our online service are the following:

convenience of the search engine;
the user does not need to understand the intricacies of the automotive industry;
the opportunity to buy spark plugs by car brand in a short time;
always up-to-date database of cars and components;
Suitable for both beginners and experienced car enthusiasts.

Note that the service has a large database of spare parts, which allows you to select spark plugs for almost any popular car brand.

Source: https://AmagSpb.ru/podborat-svechi

Selecting spark plugs for your car: secrets and tricks you need to know

How to choose the right car spark plugs and which spark plugs are better?

If you need to purchase a SZ for a car, consider several parameters:

Device size. First of all, the selection of spark plugs is carried out in accordance with the dimensions of the parts. If the size of the devices is too small, it will not be able to be installed in the corresponding slot in the motor, and accordingly, the electrodes will be located too far from the combustion chamber. If the size of the SZ is excessively large, then the pistons may hit the electrodes, which will also not result in anything good for the driver.
Heat number. This indicator demonstrates the operating temperature conditions of the device. The higher this indicator, the “colder” the SZ will be, that is, it can be used in the most aggressive conditions. If this number is too low, the device will often overheat, and accordingly, this will also affect its service life.

Automotive spark plugs

Spark plug heat number

If you are thinking about which spark plugs are better, then you need to choose first of all, taking into account the heat rating. The heat number is a designation of the time after which the SZ will begin to produce glow ignition.

The shorter the length of the thermal cone of the insulator, the more optimal the heat removal from the device will be. The selection of spark plugs by car make is made in accordance with the dimensions in millimeters indicated on the device itself.

Remember that the operation of SZ with an 11-mm threaded part is not allowed for power units designed for devices with extended threads and vice versa.

That part of the element that enters the combustion chamber can be a source of glow ignition; moreover, this can lead to damage to the electrodes.

If you install rubber gaskets under the extended SZ, then this is only possible for a while (the author of the video is Engine Repair! And interesting!).

Number of electrodes

How to choose spark plugs so that they are good and last their service life? In addition to the heat rating, it is also necessary to take into account the number of electrodes. By design, SZ can be multi- or single-electrode. In single-electrode devices, everything is simple - they have one side and one central electrode.

As for multi-electrode options, such options are equipped with a large number of side electrodes. In this case, the charge appears between the main and the nearest installed side elements.

Compared to single-electrode designs, multi-electrode designs are significantly more expensive. In this case, the difference is that in multi-electrode versions the electrodes themselves wear out evenly. Accordingly, if one of the electrodes fails, the second one can replace it. As a result, these components change each other until all of them fail.

Spark plug interchangeability table

The diameter of the nickel electrode is about 2-2.5 mm, and the use of platinum, iridium and other metals makes it possible to reduce the diameter of the main electrode.

And this, in turn, will affect the quality of ignition of the combustible mixture. It should be noted that iridium SZ electrode is the thinnest - its size is 0.6 mm.

If this element is even smaller, this will cause more efficient ignition of the mixture and, accordingly, a decrease in gasoline consumption.

It should also be taken into account that the production of devices from iridium, as well as expensive metals, makes it possible to increase the service life of the SZ itself, since such a material itself is more resistant to wear.

For example, a simple SZ, in which the electrode is nickel, can work in the region of 10-15 thousand kilometers.

And if the electrode is made of precious metal, then the service life may well be increased to one hundred thousand.

Basic candle designs

Platinum SZ for engine

Selecting spark plugs according to the car make is not such a big problem.

When choosing, you need to decide what design you need:

Platinum SZ.
A spark plug test has shown that thinner electrodes provide better spark power, which will affect the power of the engine as a whole. The spark itself appears at the sharp edges of the element, having an increased temperature. But in this case, it is necessary to take into account the fact that not every metal can withstand such heavy loads. The most optimal in this case would be the use of platinum and iridium, since these metals have better characteristics that prevent destruction. In addition to the fact that a more powerful spark helps to increase the power of the motor, it should be noted that it is formed at the end of the electrode, and on the side. The power of the spark itself will be quite enough to automatically remove deposits and carbon deposits through self-cleaning.
Prechamber devices.
In this case, the electrodes have a specific design - a prechamber. When a high-voltage pulse is applied to the SZ, a breakdown occurs in the very gap between the elements of the SZ, and the resulting plasma clot is forced out under pressure into the combustion chamber. At this moment, the flammable mixture in the chamber itself ignites. The combustion products themselves are forced into the engine cylinders at high speed. At this time, volumetric ignition of the main combustible mixture is performed by point ignition in comparison with traditional candles. The rate of combustion of the mixture begins to increase, as well as its completeness. As a result, the engine power begins to increase, and the level of toxicity of exhaust gases decreases.

Prechamber SZ for car engine

Top best spark plugs

So what are the best rated spark plugs? Today there are quite a lot of SZ manufacturers and it is sometimes difficult for the driver to make the right choice.

Below is a ranking of the most popular brands:

The first place in the ranking is occupied by SZ Denso Iridium Power. This version of spark plugs is equipped with a thin central electrode, its diameter is 0.4 mm. The cost of such devices is quite high, but this is due to the excellent quality. There are practically no negative reviews online about this product, which is why it takes first place in the rating.
SZ company BOSCH. Spark plugs from this manufacturer have been used by our compatriots for a long time, so it is not for nothing that the brand was included in our rating. The Bosch company offers consumers a huge range of SZ of different designs and at different prices. Of all the products, the Platinum line should be highlighted. In the candles of this line, the central electrode is installed in a ceramic base, as a result of which the thermal effect on the device will be minimal. Accordingly, this will increase the service life of the SZ by reducing wear.
Another model in the rating is Beru Ultra-X Platin. In this case, the operating principle is similar to the SZ described above, but such devices are equipped with four electrodes. This product has also proven to be high quality. Thanks to the use of new technologies, spark plugs have a long service life, which cannot but please consumers.

Video “What are the best spark plugs?”

Detailed information on this issue is given in the video below (video author - VybratAuto).

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Source: http://AvtoZam.com/elektronika/pusk/svechi-zazhiganiya-podbor-po-avtomobilyu/

The wisdom of selecting spark plugs by car make

Home » Spark plugs » The wisdom of selecting spark plugs by car make

Before choosing a SZ for your car, we recommend that you familiarize yourself with the basic parameters of the devices. First, let's look at their types.

Table of interchangeability of main types of SZ

Variety of details

Standard SZ. In this case, the central electrode is made of metal, which must be heat-resistant. The service life of such parts is usually not very long when compared with other types. Nevertheless, this type of SZ is considered one of the most common and in demand.
Multielectrode SZ.

In such devices, the design is supplemented with side electrodes; their number can vary, ranging from two or more. The increased number of electrodes affected the service life of parts as a whole. Unlike standard SZ, in such parts the spark allows you to change its direction, as a result of which the electrodes burn to a lesser extent.
SZ with a V-shaped notch on the central electrode. Even if the shape of the electrode has changed, this does not in any way affect the service life of the device as a whole. However, this contributes to better combustion of the combustible mixture, which in turn affects fuel consumption and reduces the volume of exhaust gases.
Platinum SZ.

Many car enthusiasts today opt for platinum parts, since the electrode in them, although thinner, is capable of providing better spark power. And this, in turn, provides higher engine power as a whole. According to many manufacturers, the service life of platinum parts can be increased to 100 thousand km.

Due to the small thickness of the electrode, the device provides low sparking voltage, fuel savings, and a stable gap throughout the entire service life.
Iridium parts, in such devices the tip is made of iridium.

Today, this type of SZ is considered one of the most expensive and reliable, since iridium is considered one of the hardest metals. It optimally resists corrosion and various electrical discharges. The thickness of the electrode in this case is about 0.6 mm.
Prechamber SZ appeared on sale not so long ago.

In such spark plugs, the electrodes have an interesting design, made in the form of pre-chambers. When a high-voltage discharge is applied to the devices, a breakdown is formed in the gap, which helps to displace the plasma clot under pressure.

Photo gallery “Types of NW”

Spark plug heat number

When purchasing parts, you should initially pay attention to such a parameter as the heat rating. This value indicates the time period after which the part will be able to produce glow ignition.

Moreover, if the length of the thermal cone of the insulating element is shorter, this will ensure the most effective heat removal from the SZ.

If you don’t know which SZ is better to choose, then first of all you should read the service book for the car, where all the main selection parameters should be indicated.

It is always necessary to remember that the use of parts with 11 mm threads is not allowed in engines that are designed to operate SZ with extended threads and vice versa.

The part of the part installed in the motor cylinder is a source of glow voltage; accordingly, this can cause damage to the electrodes.

As an option, you can install a rubberized gasket under the elongated device, but this option will prevent damage to the part only for a while (the author of the video is the NRG61RUS channel).

Number of electrodes

As mentioned above, automotive SZ can have a different number of electrodes. The design of single-electrode parts implies the presence of only one central and one side electrode. In multi-electrode devices, the number of side electrodes may vary. In such devices, charge formation occurs between the main and side components of the structure.

One of the main advantages of the latter is that the electrode elements on the device wear out evenly.

That is, if one of the components fails for some reason, it can be replaced by another, functional electrode.

Ultimately, these elements will change each other when they fail, until each of them breaks (the author of the video about cleaning the SZ is the Pile Together channel).

SZ rating by brands and manufacturers

Now we suggest that you familiarize yourself with the comparison rating of the most popular SZ brands:

SZ Eyqiem 77 00 500 168. These are original devices designed for Renault K7M engines, respectively, their operating parameters and characteristics are most optimally adapted for these engines.
One of the main characteristics of the parts is a large electrode extension, which ensures the most optimal and stable ignition of the combustible mixture even if it is unevenly distributed throughout the cylinder. In addition, this solution contributes to improved ventilation of the device, which also ensures stable ignition. According to reviews, these candles really are as good as the manufacturer describes them. In fact, the service life of the SZ depends on the condition of the power unit, as well as the quality of the gasoline used . The service life of Eyqiem 77 00 500 168 varies on average around 40 thousand km.
Denso K20TXR. In such parts, the electrodes are coated with nickel, which contributes to more stable operation of the SZ, increasing their service life, as well as immunity to erosion. If you look at these SZ through a magnifying glass, you will see that the side elements are installed as smoothly as possible, not even traces of soldering or distortion are visible. Accordingly, this contributes to improved spark formation and, accordingly, more stable engine operation, which in turn affects fuel consumption. The only drawback is the high cost of the devices.
Beru Z193.
SZ of this brand are characterized by an affordable cost and a fairly high service life. You can find many different types of Beru SZ on the market, but this option is considered one of the most optimal for many modern engines. Due to the fact that the design of the parts itself is single-electrode, their service life will be lower compared to the devices described above. The devices have a small spark gap of only 0.9 mm. And although this greatly facilitates the start of the power unit if the car battery is dead, it also helps to reduce the power of the spark. If, on top of that, you refuel with low-quality fuel, using Beru may cause misfires, in particular when the internal combustion engine is operating under heavy loads. In addition, due to the fact that the electrode is slightly recessed, this contributes to the deterioration of ventilation of the spark gap, and accordingly, this can also affect the ignition of the combustible mixture.
Bosch.
The Bosch brand has long established itself in the market as a manufacturer of high-quality parts and components. As the results of numerous tests have shown, the products of this manufacturer are not inferior in quality to even the market leaders. On the spark plugs themselves, the electrodes are soldered quite evenly, while the markings themselves on the structure are applied evenly and without distortions. The presence of the latter may indicate that you have counterfeit SZ in your hands. The main advantages of such devices include a high service life, as well as a fairly low price. As for the shortcomings, this is a huge number of fakes on the domestic market.
NGK.
Iridium devices, of course, are the highest quality and most efficient, and their service life will always be longer than traditional SZ. Their operation, according to many experts, is relevant for newer power units that do not “eat” oil. If you use only high-quality fuel to refuel your car, the service life of the NGK SZ can be 50 thousand kilometers. The main advantages of the devices include stable spark formation, as well as a fairly long service life. As for the disadvantages, it is a high price, but as you know, you always have to pay for quality.

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Video “Recommendations for self-cleaning SZ”

Over time, carbon deposits may form on the SZ, which contributes to their less efficient operation - the video below provides detailed instructions on how to remove carbon deposits with a description of all the nuances (author - Autoelectrics HF channel).

Do you have any questions? Specialists and readers of the AVTOKLEMA website will help you ask a question

Source: https://avtoklema.com/svechi/zazhiganija-podbor-po-avtomobilju-874/

Select spark plugs – Select oils and spare parts

In order for fuel to burn correctly and completely in the engine, it is necessary to use an appropriate ignition source in the system. If we talk about engines that run on gasoline, then such a source is the spark plug.

It is designed to ignite the fuel mixture through a discharge. It is important to take a responsible approach to the choice of spark plugs, since the performance and service life of the motor depends on it.

Our specialists will always help with the right choice of candles.

Types of Spark Plugs

For many decades, spark plugs have been used in automobile construction. At the same time, they are continuously improved by manufacturers. For each type of engine there are corresponding types of spark plugs:

Spark devices are used for gasoline devices.
A surface discharge product is intended for gas turbines.
Manufacturers offer arc ones for turbojet engines.
Glow plugs are intended for diesel engines, carburetor engines, and those used in ships and aviation.

Spark plugs are the most popular, since they are suitable for gasoline units. They are necessary to ensure that the fuel in the cylinder ignites. In turn, spark products are divided according to the type and number of electrical leads:

with one electrode;
with a large number of electrodes;
flare;
plasma-prechamber.

What is heat number?

The heat rating is an indicator that the spark plug is capable of ensuring timely ignition and combustion of fuel. Practice shows that if the spark plug does not heat up enough, its service life is significantly reduced due to the carbon deposits that form. In this case, the fuel cannot burn completely.

There are also cases when the products get too hot, and then ignition may occur suddenly, not only from the incoming charge. Because of this, the car owner may experience valve burnout and deformation.

If we consider this parameter, it is worth highlighting the types of products according to the heat value:

Hot, their value is from 11 to 14, this option is considered ideal for engines with low afterburner.
The average is from 17 to 19.
Cold ones are equal to 20, intended for powerful engines.
There are also unified ones, their value varies from 11 to 20. They have a characteristic difference - such candles have a semi-open structure. Due to this design feature, the product does not become clogged.

What else should you pay attention to?

Among the characteristics of products, their sizes are noted, which must be taken into account when choosing. It is important to understand what size the product is in the motor.

If we talk about sizes, then it is necessary to take into account such parameters as the metric thread on the body, the length of the threaded part, and the size of the hex head. The gap between the spark plug electrodes also matters.

Manufacturers set their own gap sizes; they depend on the technology of creation and the materials used.

The material also matters. Thus, alloy steel is used to create side electrodes. Such candles are distinguished by their long service life and quality. In most cases, nickel or copper is used to create central electrodes. The use of these materials provides the ability to prevent carbon deposits and various contaminants, and has a positive effect on service life.

Which candles to choose?

You need to be extremely careful when choosing, the operation of the car’s engine depends on it. The best solution is to trust the technical recommendations of the machine manufacturer. You can find relevant recommendations in the transport passport or instructions for use.

The manufacturer usually explains in detail which spark plugs are suitable for the car. So that motorists can conveniently select products, each has its own marking. For clarity, it is worth considering a standard example of marking.

Let's take a product marked AU17DVRM and try to understand the meaning of its code.

A – thread on the body M14x1.25 mm
U – hex head size 16 mm
17 – heat number
D – thread length 19 mm
B – the thermal cone of the insulator protrudes
R – built-in resonator to reduce radio interference from the ignition system
M – copper electrode

It is worth giving preference to products from trusted manufacturers. Today there are many certified points where you can pick up original parts. Companies such as NGK, Denso, Bosh, Brisk are considered popular. It is worth talking in more detail about some of them:

Bosch. These products are famous for their German quality, the products occupy a leading position in the market. They are used for cars such as Toyota, Mitsubishi, Fiat, Audi. The manufacturer offers car enthusiasts a huge selection, among which everyone can choose something suitable. Such products can work even with a low battery charge, and are notable for their long service life and environmental friendliness. Many products from this manufacturer are considered universal and can be combined with a large number of cars.
Denso. They are considered a more affordable option when compared with other manufacturers. But at the same time, among their advantages are long service life, versatility of products, and the ability to self-clean when operating at high speeds. Such spark plugs are famous for their excellent quality characteristics. The market regularly sells such products in large volumes. At the same time, the organization engaged in the creation of candles offers products to Ferrari, Volkswagen, BMW, Volvo.
NGK. These products also have a long service life; they can be used for 50 thousand kilometers. Regardless of the battery charge, stable operation is noted. Such products are quite expensive, but they are notable for the high resistance of the central electrode to damage.

Making the right choice

In order not to make a mistake with your choice, it is better to follow the recommendations given by the manufacturer of your car. The instructions that come with the car always contain detailed recommendations on this matter.

It says which brand is installed at the factory and is the optimal solution for the system, since the manufacturer tries to take into account all the features of the model, in particular the technical characteristics.

If you wish, you can purchase expensive candles, which you are unlikely to find in the manufacturer’s recommendations. At the same time, it is worth thinking about whether such a purchase will justify itself? When choosing, you need to consider your average driving speed and the type of fuel you use.

Is it worth purchasing expensive spark plugs when the engine does not require extreme power? You should focus on the following parameters:

life time;
the temperature at which the product will be used;
thermal range;
marking.

Product labeling significantly simplifies the choice, but it must be taken into account that currently there is no single labeling standard; you need to know the decoding of the code of the specific manufacturer. Of course, this is not convenient, because for candles from different manufacturers, alphanumeric designations can be deciphered completely differently. Therefore, it is worth understanding the code on the candle more carefully.

When should you change spark plugs?

Not every car enthusiast knows when it is time to change spark plugs. Therefore, you should get acquainted with the main signs that the service life of the candles has already expired:

The speed began to pick up much more slowly.
The power of the car is noticeably reduced, you can feel it while driving.
Fuel consumption increases significantly with wear. This can also occur with other malfunctions, but when the spark plugs are worn out, this is one of the main indicators.
It is worth paying attention to the appearance of the product; it can tell you whether the part is worn out or not.
The car may simply not start, it may not start the first time. Problems when starting the engine directly indicate that it is time to replace the part.
The engine may experience unstable operation, it may jerk during the trip, so to speak, it may trip. It can also work in waves, which will also be felt.
Due to the unstable operation of the engine, corresponding vibrations are transmitted into the cabin.

Spark plugs for popular cars

When you realize that the time has come to replace the products, you should start looking for a suitable option. Many car enthusiasts refuse to purchase so-called fancy spark plugs. This applies to such budget cars as Hyundai, VAZ, Solaris, Logan.

Also, it makes no sense to buy expensive products for drivers whose cars are under warranty. The fact is that in this case, replacement of spark plugs is required at each maintenance. Practice shows that on average a car manages to travel about 15 thousand kilometers during this time.

Therefore, there is no point in purchasing expensive products.

More expensive spark plugs promise a long service life, but if the regulations require replacement, then you will have to change them too. A regular nickel spark plug can easily cover 15 thousand kilometers, and it is recommended by the car manufacturer.

Each manufacturer has models that are included in the budget range. So, for Logan, if it is under warranty, you can choose budget options BERU Ultra X UXF79, NGK BKR6E.

Their cost is affordable; purchasing will require approximately 150 rubles.

If the car is no longer under warranty, then you can give preference to more expensive options. Today the market offers excellent products coated with precious metals.

By giving preference to them, you can forget about problems with candles for a long time. Remember that when replacing products, the engine must be in full working order, as well as the fuel and air systems.

The product manufacturer cannot guarantee stable and long-term operation if the system is faulty.

Therefore, the optimal solution would be to make sure that everything is in order with the car before purchasing. The system should work properly with good fuel. If you find any problems, then the best choice would be to deal with the technical part. Only after this will it be possible to replace the products with new ones. This way you will avoid unnecessary expenses.

Source: https://cardone.org/assistant/promo?act=concept/sparkplugs&ReturnUrl=/Market/Catalog/svechi

How to choose the right spark plugs for your car?

During the operation of the car, each car owner will invariably need to replace spark plugs. How to choose the right candles, which at the same time must be reliable, durable and affordable. We will tell you in more detail how to choose spark plugs for your car.

What are spark plugs used for?

Spark plugs in a car are used to ignite the fuel in the combustion chamber. A power discharge of tens of thousands of volts is applied to the spark plug, resulting in a high-voltage arc appearing between the electrodes, which ignites the fuel.

Spark plugs are subject to increased stress during operation, so they need to be replaced on a regular basis. Experts recommend changing spark plugs every 100,000 kilometers, which will ensure excellent power performance and reduced fuel consumption.

Also, spark plugs are an indicator of engine condition, and if any foreign deposits appear on the electrodes, appropriate engine diagnostics and repairs should be performed.

What can candles say?

The condition of the spark plugs can indicate existing problems with the engine. For example, if the electrode is covered with black carbon deposits, this indicates an enriched fuel-air mixture.

As a rule, such engines simultaneously experience increased fuel consumption.

But if there is light gray or white carbon deposits on the electrode, then the engine is running on a lean mixture, which can lead to overheating of the combustion chamber.

If there is a small skirt with a reddish tint on the central electrode, this indicates a high content of various additives in the fuel. As a rule, such deposits are also found inside the engine. Accordingly, it will be necessary to clean the engine using ultrasound and special injector cleaners.

If there are oil smudges on the spark plugs, this indicates increased oil consumption and problems with the valve stem seals. Such an engine has a bluish exhaust color and a characteristic smell of exhaust gases.

Popular types of spark plugs

Currently, in specialized auto parts stores you can find spark plugs with one or more electrodes, as well as those made of iridium and platinum.

Single-electrode spark plugs are simple in design, have a white ceramic body and a threaded metal insert. The spark is produced by two electrodes, side and central.

Such candles have been produced for many decades, they are popular, but they also have certain disadvantages.

First of all, this is a short service life, so there are often situations when, after 20-30 thousand kilometers, it is necessary to change the spark plugs.

Multi-electrode spark plugs can have 3-4 side electrodes and one central electrode. This design provides a high-quality spark, and such spark plugs have a long service life. The only drawback of such multi-electrode spark plugs is their high cost.

Also on sale you can find versions of such spark plugs that are made of conventional metal alloys, as well as noble metals.

Initially they were used exclusively in motorsports, but today they are also used in civilian life.

A special feature of such spark plugs is their ultra-thin electrodes, which can withstand high temperatures without compromising the quality of the spark and ignition of the mixture, even at increased engine loads.

Iridium spark plugs, which belong to a new generation and have the highest melting point, are also very popular. Iridium is an extremely hard, corrosion-resistant metal from which spark plug electrodes are made, which not only ensure high-quality fuel combustion, but also have a long service life.

We choose candles depending on the heat number

All candles used today have a heat rating. This number shows the degree to which the candle accumulates heat.

The higher the number, the cooler the candle is considered, and the longer it retains its performance characteristics.

Experts recommend giving preference to spark plugs with a high heat rating, which will ensure high-quality fuel combustion and ensure optimal engine power.

How to choose the right spark plugs for a car?

On sale today you can find spark plugs from various manufacturers. The most popular products today are from the German company Bosch, which combines quality and durability.

Bosch produces such spark plugs for various cars, which differ in their design and heat rating.

We do not recommend that you save on the quality of the purchased spark plugs, but give preference only to well-proven models from leading manufacturers, which will ensure trouble-free engine operation.

Conclusion

The correct choice of spark plugs used will allow you to guarantee trouble-free engine operation, reduced fuel consumption and excellent engine power characteristics.

It is necessary to select spark plugs depending on their design, electrode material, and also on the heat index.

We recommend that you purchase these spark plugs from leading manufacturers to ensure they are durable and resistant to high temperatures.

07.12.2017

Source: http://cartechnic.ru/articles/kak_pravilno_vybrat_svechi_zazhiganija_dlja_mashiny

Spark plugs (top 10) | Marking, Characteristics, Types

The ignition system is one of the most important systems in every spark ignition engine. Plugs are responsible for generating sparks in the engine cylinders.

The spark plug is used in all types of ignition systems: contact, non-contact and electronic. Leading manufacturers are such companies as: Denso, NGK, Bosch, Champion, Beru.

The spark plug device is a ceramic tube with a conductor in the center and a metal electrode on the side.

The article will help you find out:

Properly selected spark plugs, interacting with high-quality fuel, will last without replacement for a fairly long vehicle mileage. On average, this is 30–60 thousand.

km, and if it is iridium or platinum, then much longer.

That is why, when selecting spark plugs, it is so important to have a good understanding of the markings, types and their purpose; such knowledge will help you choose the best spark plugs for your vehicle.

Parameters and characteristics of spark plugs

The main parameters of the characteristics of candles are the size and heat rating, in addition to the fact that they also differ in the number of electrodes and in the material of manufacture. Let’s look at all these points and how they affect performance in order.

One of the most important thermal characteristics of spark plugs is the so-called heat number . This is a parameter indicating the pressure at which glow ignition occurs. Usually, the vehicle documentation indicates the brand of spark plugs and the heat rating that should be used in it. Try to follow these recommendations.

An incorrectly selected heat rating affects the self-cleaning of the spark plug.

The heat rating is divided into three ranges:

cold candles (calc. from 20 and above);
hot (11 - 14);
average (count from 17 to 19).

This parameter indicates the thermal operating conditions of the candle ; the higher it is, the higher temperatures it can work with.

A spark plug with a higher heat rating can work in a more aggressive environment with high temperatures, while a spark plug with a lower heat rating will often overheat, which naturally affects its service life.

In addition to the heat rating and geometric dimensions, there is another quite important parameter when choosing candles - their design.

Specifications

General information about spark plugs

The technical characteristics of the spark plug include:

thread diameter;
key head size;
thread length;
gap between electrodes.

The diameter of automotive spark plugs is usually 14 mm. Based on thread length, candles are divided into three groups:

1) short – 12 mm;

2) medium – 19-20 mm;

3) long – 25 mm or more.

The length of the threaded part of the spark plug will depend on the engine power - the more powerful, the longer the spark plug . This design is due to the fact that the temperature is distributed faster and more evenly throughout the long body.

The most common size tool for screwing in spark plugs is a 16 mm socket, less commonly – 14 and 18 mm.

The gap size between the central and side electrodes for all spark plugs is within the range of 0.5 mm - 2.0 mm, but the most common is 0.8 or 1.1 mm.

The characteristics of a spark plug are marked with a standard designation - an alphanumeric code, which is applied to the spark plug and to the packaging. Typical designations for candles vary depending on the manufacturer; there are no standardized designations.

What materials are spark plugs made from?

Among other things, candles also differ in the material from which they are made.

Candles can be single or bimetallic , but since the times when candles were produced only for Soviet technology have passed, nowadays they are made of two metals - a copper (or chrome-nickel) core and a steel shell.

This method is used to ensure quick and reliable engine starting, as well as rapid heat dissipation during operation, since the steel shell quickly warms up at the initial stage of operation, and the copper core removes heat well at an operating temperature of 500 to 900 ° C.

But to increase resistance to corrosion and, accordingly, increase service life, this classic arrangement is diluted by soldering the central electrode from alloys of steel and other expensive metals such as platinum, iridium, palladium or tungsten, or by completely replacing the copper core.

Types of spark plugs

In the classic design, the spark plug is two-electrode - with one central electrode and one side electrode, but due to the evolution of the design, multi-electrode ones have appeared (there can be several side electrodes, usually 2 or 4). This multi-electrode configuration allows for increased reliability and service life . Also less common due to their high cost and controversial tests are torch and prechamber spark plugs.

In addition to the design, candles are also divided into other types, depending on the material used to make the electrode. As it has already turned out, this is often steel alloyed with nickel and manganese, but to increase the service life, the electrodes are soldered with various precious metals, usually platinum or iridium.

Spark plug testing

A distinctive feature of platinum and iridium spark plugs is a different shape of the central and side electrodes. Since the use of these metals allows for a constant, powerful spark under more severe operating conditions, a thin electrode requires less voltage, thereby reducing the load on the ignition coil and optimizing fuel combustion.

It makes sense to install platinum spark plugs in turbo engines, since this metal is highly resistant to corrosion and is also resistant to high temperatures.

Unlike classic ones, platinum candles should never be cleaned mechanically.

Depending on the frequency of replacement, spark plugs can be placed in the following order:

Copper/nickel spark plugs have a standard service life of up to 30 thousand km, their cost is quite consistent with their service life, the price of one such spark plug will be around 250 rubles.
Platinum spark plugs (sprayed onto the electrode) are in second place in terms of service life, applicability and price tag. The duration of trouble-free operation of spark ignition is twice as long, that is, about 60 thousand km. In addition, the formation of soot will be significantly less, which has an even more favorable effect on the ignition of the air-fuel mixture.
Iridium spark plugs significantly improve thermal performance. These spark plugs provide an uninterrupted spark at the highest temperatures. The service life will be more than 100 thousand km, but the price will be much higher than the first two.

The best spark plugs

Having learned about the types of spark plugs and their characteristics, a logical question arises when selecting: “Which spark plugs are better?” When looking for a definite answer to this question, you can spend a long time scrolling through pages on the Internet and studying various ratings of spark plug manufacturers. But it’s impossible to tell absolutely everyone that they need to buy iridium and be happy with the engine’s performance.

Whatever the spark plug, if it is chosen incorrectly, this will certainly affect the operation of the engine and its service life.

The first step is to look at the service instructions for your car; often, you can always find information there about what brand of spark plugs is installed from the factory. The best choice will be those spark plugs recommended by the car manufacturer , because the factory takes into account the needs of the engine and the technical characteristics of spark plugs.

Moreover, if the car already has a high mileage, investing in it in the form of expensive platinum or iridium spark plugs will at least not justify itself. You also need to take into account what kind of gasoline and how long you drive. It makes no sense to pay money for expensive spark plugs for an engine with a volume of less than 2 liters, when the engine does not require extraordinary power.

How to choose the right spark plugs for your car

Basic parameters for selecting spark plugs

Parameters and technical specifications
Temperature regime.
Thermal range.
Product resource.

And in order to quickly navigate the candles with the necessary requirements, you need to be able to decipher the markings.

But, unlike oil markings, spark plug markings do not have a generally accepted standard and, depending on the manufacturer, the alphanumeric designation is deciphered differently.

However, on any candles there must be markings indicating:

diameter;
type of spark plug and electrode;
heat number;
type and location of electrodes;
the gap between the central and side electrodes.

Decoding spark plug markings

Which candle manufacturer is better?

You need to look, first of all, not at the model and manufacturer, but at the design and quality of manufacture of the candle. For normal use, any spark plug that is capable of ensuring stable spark formation at a pressure of at least 8 atm is suitable, but it is still recommended to take those that have a pressure reserve of at least 16 atm.

Below is a number of candles from different price categories, designs, types and popular manufacturers, which, during the test, showed the best results:

Iridium DENSO VK20 (no. 5604) - will cost around $15 apiece, but the price meets expectations. Works stably at pressures up to 25 atm., has an effective blue spark with a minimum number of skips.
A regular DENSO W20TT with a nickel central electrode without any drag. metals, costing just over 100 rubles. Suitable for both VAZs and various foreign cars.
The DENSO IRIDIUM POWER IK16 spark plug will cost about 700 rubles. works stably under heavy loads.
A little cheaper than the previous ones, but no worse in quality than the NGK DILFR5A-11 (93759). These spark plugs are original for Lancer and reliably withstand any load.
Platinum Longlife spark plugs VAG BOSCH BOM 06H905611 R1 DC will cost about $11 apiece and are designed to work in turbocharged German engines. The service life of these spark plugs is at least 100,000 km.
BOSCH SUPER PLUS FR8DPP33 with yttrium doped, but a platinum tip of the central electrode and with an average price tag ($5) would be quite good The service life of such spark plugs will be on average at least 50 thousand km.
NGK VAG 03F905600A R1 NG4 with an iridium electrode is designed for use in TSI engines of Audi, Volkswagen, Skoda cars as well as Boshev ones from the VAG concern, only the price will be slightly lower. A thin electrode and a small gap, only 0.7 mm, allows you to obtain a powerful spark and achieve complete combustion of fuel.
For old-style engines, a good choice would be BOSCH SUPER4 WR78X R6 208 (original number 242232804), at an affordable price, just over 600 rubles. For a set of 4 pieces you will receive a multi-electrode spark plug with decent performance results.
NGK R ZFR5V-G is a classic budget spark plug with stable performance results up to a load of 25 atm.
A good budget option with a copper central electrode DENSO KJ16CR-L11 will cost you just over a hundred rubles apiece. Such spark plugs can be used on various foreign cars, including Hyundai, Kia, Opel.

What good spark plugs are, each car owner personally decides for himself. Some people prefer to select those made exclusively from rare and expensive materials, while others primarily take into account the brand of the part and the make of the car, as well as the conditions in which their car is used.

The main signs of spark plug failure

The appearance of spark plugs can tell not only about their operation, but also about malfunctions of both the fuel system and other engine systems. What are the signs of a faulty spark plug itself?

So that drivers can understand from the behavior of their car that it is time to replace the spark plugs, let us recall the main signs of their malfunctions: