15 best spark plugs

The modern auto parts market offers car owners a wide range of products from various manufacturers that have no direct relation to well-known car manufacturers. Even such an ordinary thing as a spark plug, designed to ignite the fuel-air mixture, is produced under the auspices of special companies. This is due primarily to the high cost of branded products. The presence of the logo of the automaker on the candle automatically adds from 20 to 50% of its total value. Therefore, a natural question arises before users: is it possible to buy high-quality candles at a low price, produced under the auspices of "untwisted" companies?

Of course you can! And in order to confirm the statement made, we picked up decent options and ranked the best spark plugs in several categories. The distribution of goods in places was based on the following criteria:

1. motorists reviews about the experience of use;
2. opinion of authoritative publications, professionals and experts;
3. performance comparison;
4. value for money products.

The control group adopted a line of produced domestic VAZ cars and products of the Renault-Nissan concern similar in platform.

Best cheap single electrode spark plugs

3 Denso W20EPR-U

Denso W20EPR-U is positioned as a standard candle designed for use in engines of the LADA, Chevrolet, Nissan and Daewoo cars. Contains several interesting constructive solutions at once, due to which it opens up new facets in working with stock engines. First, it should be noted the original shape of the side electrode with a U-shaped groove. This solution allowed to slightly increase the area of ​​flame spread from a spark, increasing the completeness of combustion of the fuel-air mixture and reducing emissions (by an average of 3.1% compared to EZ candles). Secondly, there was a replacement of the core of the central electrode from a solid nickel to a copper one, which made it possible to somewhat increase the power of the engine and also slow down the wear of the side electrode. However, we have to admit that the working resource of Denso W20EPR-U (even despite the improvements) turned out to be not the biggest - at best, such a candle will last for 30 thousand kilometers.

2 Champion RN9 YCC

At first glance, Champion RN9 YCC is a typical candle, of which there is a great variety on the market. Because of the low cost, it is installed mainly on the cars of the VAZ concern - from 2106 to 2115. However, owners of Korean and Japanese cars (Hyundai, Honda, Toyota) are also often interested in this model.

The main advantage of these candles is the original approach to the manufacture of electrodes. For better dissipation of heat in the burning zone of a spark, the developers focused on the electrode core, making it copper. This measure allowed to significantly reduce the temperature on the side electrode, in parallel increasing the service life of the candle 2 times. In addition, the positive aspects of the point improvement also affected the power parameters: bench measurements registered an insignificant, but an increase in the engine power: about 1.2-1.4%.

1 Bosch WR7DP

Unique, in terms of the design of the central electrode, a candle. The thin core is made almost flush with a ceramic insulator, so that the spark takes the form of a plasma discharge. This discharge is stable even at low voltage in the vehicle electrical system. When working on high-quality fuel, the resource of one candle is almost 55-60 thousand kilometers - this figure is achieved by platinum spraying. However, domestic roads do not recognize precious metals. In Russian realities, Bosch WR7DP candles burn out much faster. They are installed mainly on foreign cars, such as Chevrolet, Hyundai, Nissan, etc. The price is above the average, but their iridium counterparts are much more expensive.

Advantages:

• innovative design of the central electrode;
• spark plasma arc type;
• attractive price;
• stable operation at low battery voltage;
• availability of modifications for cars VAZ, Renault, Chevrolet, etc.

Disadvantages:

• fuel consumption is slightly higher than when using standard (saving) spark plugs.

Best premium single-electrode spark plugs

2 NGK BKR6EIX

The iridium spark plug possessing a big working resource. According to numerous users, one set is enough for an average of 50 thousand kilometers, but when using high-quality high-octane fuel, this figure can grow to 60-65 thousand kilometers. In terms of fuel economy, there is no particular difference with inexpensive candles, however, the economic factor is expressed by working out the entire life of the declared operation. The cost is high, due to iridium coating applied to the central and only side electrode. The best option for drivers of German cars ("BMW", "Audi", "Volkswagen"), American (Ford, Chevrolet, Chrysler) and Japanese (Lexus, Toyota, Mazda, Honda ”) brands that are very interested in the stable operation of the engine.

Advantages:

• widespread;
• long service life (about 50 thousand kilometers);
• iridium coating;
• stable spark;
• high rated quality.

Disadvantages:

• high cost, compensated by quality and durability.

1 Denso PK20PR-P8

Very common candles among Nissan B car owners (Renault, Nissan, VAZ). We liked the high rate of the working resource (about 40 thousand kilometers on fuel of the highest class) and the corresponding low cost. In terms of quality, Denso PK20PR-P8 is also okay: Japanese manufacturers, as they say, have done a good job on platinum coating and electrode geometry. The only problem during operation may be a small interelectrode gap, made so for the sake of supplying a spark, even at low voltage networks.Nevertheless, motorists are not at all embarrassed to acquire these candles, the good thing is that in most cases the purchase is fully justified.

Advantages:

• acceptable work resource;
• good quality electrode coating;
• the presence of typical iridium analogues (more expensive, but more stable).

Disadvantages:

• insufficient, based on regulatory requirements, the interelectrode gap for Renault cars and the like (0.8 millimeters).

The best spark plugs with two electrodes

4 Renault 77-00-500-168

The product of the French company Eyqiem is officially shipped to Renault for the assembly of K7M engines. It has a standard spark plug design, but provides a slightly larger radius of the central electrode to ignite as much of the air-fuel mixture as possible. Two side electrodes significantly increase the working life of the candle, taking the discharge alternately, giving each other time to remove and dissipate heat.

Since the main desire of developers in the manufacture of candles Renault 77-00-500-168 was to ensure maximum stability of work, economic and power indicators retreated into the background. The candle does not provide a large increase in power in relation to single-electrode models, it does not carry fuel economy, but it can be used up to 40-50 thousand kilometers.

3 Bosch FR7LDC +

Candle high degree of reliability, very popular in Russia (used in cars "VAZ", "Audi", "Chevrolet", "Mercedes", etc.). The basis of the success of Bosch FR7LDC + is a non-trivial approach to the manufacture of the electrode part. No, it's not about the geometry and location of the electrodes relative to each other - everything is done in the best tradition of candle making. The main nuance is entirely enclosed in the variety of materials used. The central electrode of the candle is doped with yttrium - a rare-earth metal that significantly increases the stability of the work. In addition, the core of this electrode is made of copper with an anticorrosive chromium-nickel coating. This combination not only protects the metal from the occurrence of corrosion, but also provides effective heat dissipation in the burning zone of the spark. As a result, we get a reliable and efficient candle, the resource of which (at maximum efficiency) lasts for 50-60 thousand kilometers.

2 NGK BKR6EK

Very good candle of the V-Line series, having a V-shaped recess on the central one and a slight rounding at the two side electrodes. It has the best detonation time and effective ignition of the fuel mixture, which, in turn, causes a slight boost of the engine (the increase in power by 1.3-1.8% exceeds that when installing standard single-electrode candles). Among other things, NGK BKR6EK provides a more complete combustion of fuel, thereby positively affecting the overall efficiency of the engine.

The main irony of these candles lies in the fact that, produced in Japan, they are not used in Japanese cars. Most often, these kits can be found in LADA, Audi, BMW and Skoda cars, which clearly demonstrate the company's focus on the European segment.

1 Denso K20TXR

Two-electrode candles from the Japanese manufacturer are one of the most successful options for completing the engines of the auto platform Nissan B ("LADA", "Nissan", "Chevrolet", "Renault"). There are no “jambs” in the work (if they are original candles, but not fakes): neither stamping defects, nor distortions when soldering electrodes.It is the high quality of workmanship that ensures the duration of operation (up to 40 thousand kilometers - the resource is highly dependent on fuel) and the stability of the spark supply. The traditional and less expensive (compared to iridium and platinum) nickel-plated electrodes give the latter resistance to the combined effects of negative factors (carbon deposits, high temperatures and the general aggressive environment). Fuel consumption is not much different from that when using regular branded candles.

Advantages:

• Nickel coating increases the resistance of the electrodes to aggressive media;
• stable spark (fulfills ignition cycles without arc attenuation);
• regular, millimeter, the gap between the side and central electrodes;
• quality manufacturing.

Disadvantages:

• cost a little more than branded candles from Reno.

The best multi-electrode spark plugs

3 Brisk Premium LOR15LGS

Brisk Premium LOR15LGS - a candle that won fame for the most thoughtful and interesting in terms of spark formation. All four side electrodes are greatly underestimated relative to the central one, due to which a very long spark is created that slides along a ceramic insulator. This principle can significantly enhance the detonation of the mixture, but on the other hand it has one very unpleasant nuance. Sparking at reduced voltage with such a configuration of electrodes is no good - the test in the pressure chamber clearly shows that in this component LOR15LGS is inferior even to standard single-electrode candles.

Nevertheless, there is a good stability of the engine in all modes, and at maximum throttle, the additional power rush is at the level of 5%. These candles are successfully tested by owners of domestic cars, and are also often found in Japanese (Toyota, Honda and Lexus) and Korean (Hyundai, Kia) brands.

2 Bosch W7 DTC Standard Super

An interesting version of the candles from the German manufacturer, which gives the maximum increase in the efficiency of fuel consumption relative to single-electrode counterparts. Possessing, in general, a standard structure inherent in almost all Bosch candles, the W7 DTC Standard Super presents some very pleasant “surprises” revealed during complex tests. The pressure test carried out in the pressure chamber, the model passes perfectly, demonstrating the good stability of the spark. At maximum throttling, the increase in power is not so noticeable, but there are positive trends - with respect to single-electrode EZ candles, it was 2.3-2.7%.

However, the most successful Bosch W7 DTC Standard Super was able to achieve in the consumption component. A reduction of 3.2% is a great result, especially for engines that are far from the first freshness. These candles are perfectly bought up by the owners of LADA, Chevrolet and VAG-groups.

1 Champion N9BYC4

The three-electrode Champion N9BYC4 candle is the sole leader in reducing fuel consumption, as well as increasing power when the engine is throttled (by an average of 5-5.6%) relative to single-electrode candles. In addition, there is a noticeable improvement in the stability of work, even despite the average results of testing in the pressure chamber. From the geometric features of the electrode part, there is nothing to distinguish as a whole - against the background of various undercuts, grooves and other constructs from other manufacturers, this candlestick looks canonical.

Champion N9BYC4 is successfully used in all running cars in Russia (from German marks to representatives of the domestic auto industry), without any hint of falsification and other troubles. Her consumer audience is quite large, which once again proves the validity of including this model in the rating.

The best spark plugs for engines with gas equipment

3 Beru ULTRA-X79

Spark plug with an asymmetrical arrangement of the side electrodes: two out of four are at a distance of 0.8 millimeter from the rod, the others are 1.2 millimeters removed. This was done specifically to support the spark under any operating conditions and to bypass the potentially potentially unfavorable situations that arise, like a strong “smoking” insulators. In other words, such a problem as the quality of gasoline does not at all affect the performance of a spark plug, the resource of which lasts for 60 thousand kilometers (if not a fake). An additional “bonus” of Beru Ultra-X 79 is the compatibility of work with engines on gas equipment, where the highest efficiency is noted.

Advantages:

• support of work on liquefied natural gas;
• high fuel economy;
• stable spark with heavy pollution;
• acceptable price.

Disadvantages:

• installation of the desired gap between the electrodes, in accordance with the requirements of the car, is difficult;
• open throttle valve has almost no effect on increasing power.

2 Denso Iridium IW20

Candle, recognized by the user of outdated technology, but still not lost relevance in large consumer masses. It has a thin central electrode (0.4 millimeter), due to which it does not live long, but allows you to significantly save fuel and burn the mixture as much as possible in the combustion chamber. The main flow of power here (equal to 2-3%) is mixed up with an increase in engine efficiency by reducing misfire and rhythm of spark supply. Despite the short life, the life of the iridium tip cannot be called low: it reliably fulfills up to 30 thousand mileage, and, depending on the methods of operation of the vehicle, is able to work beyond its appointed time.

Because of this set of small but positive nuances, Denso Iridium IW20 is often installed on cars that are converted to gas fuel. Thus, the already economical alternative becomes even more economical.

1 NGK LPG Line №2

NGK LPG Line №2 - the main candle for installation on gas-fueled engines, which occupies more than 90% of this market. Going into such a specific niche, NGK began the most ambitious, complex development of candles, taking into account all the nuances and specifics of the combustion of natural gas. This approach allowed us to find the most correct geometry of the central iridium electrode, as well as to settle the gap between it and the side electrode with platinum surfacing.

Such heterogeneous materials were also chosen by chance: taking into account the different composition of the combustible mixture, as well as modes of operation, the electrodes needed additional protection and stimulation of operation without misfire. In this regard, it was possible not only to maximize the volume of combustible fuel, but also to increase the engine power by 3-4%. This model is quite expensive, but it “lives” not as an example longer than its competitors.

Popular vote - who is the best manufacturer of spark plugs?
We vote!

Bosch

Beru

DENSO

Ngk

Brisk

Champion

Renault

Total votes: 198

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