Which denso candles are more versatile. How to correctly select Denso spark plugs for a car? Products of the company "Denso"

In order for the fuel to burn correctly and fully in the engine, it is required to use an appropriate ignition source in the system. If we talk about engines that run on gasoline, then such a source is a spark plug. It is intended to ignite the fuel mixture by means of a discharge. It is important to responsibly approach the choice of candles, since the performance and service life of the motor depend on it. Our experts will always help with the right choice of candles.

Types of spark plugs

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

1. For gasoline devices, spark devices are used.
2. For gas turbines, a surface discharge product is intended.
3. For turbojet manufacturers offer arc.
4. For a diesel engine, a carburetor engine, for those used in ship and aviation business, glow plugs are intended.

Spark plugs are the most popular, since they are suitable for gasoline units. They are necessary in order for the fuel in the cylinder to ignite. In turn, spark products are subdivided according to the type and number of electric conductors:

• with one electrode;
• with a large number of electrodes;
• torch;
• plasma prechamber.

What is a heat number?

The glow number is an indicator that the spark plug is capable of providing timely ignition and combustion of the fuel. Practice shows that if the candle does not heat up enough, then its service life is significantly reduced due to the formation of soot. In this case, the fuel cannot burn completely. There are also cases when the products are too hot, and then ignition can occur suddenly, not only from the incoming charge. Because of this, the motorist may experience burnout of the valves, their deformation. If we consider this parameter, then it is worth highlighting the varieties of products according to the magnitude of the glow number:

1. Hot, their value is from 11 to 14, this option is considered ideal for motors with a small afterburner.
2. The averages are from 17 to 19.
3. Cold equates to 20, intended for powerful motors.
4. 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 clog.

What else to pay attention to?

Among the characteristics of products, their dimensions are noted, which must be taken into account when choosing. It is important to understand what size product is in the motor. If we talk about dimensions, then it is necessary to take into account such parameters as the metric thread on the body, the length of the threaded part, the size of the hexagon head. The gap between the electrodes of the candle also matters. Manufacturers set their own gap sizes, they depend on the technology of creation and the materials used.

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

What candles to choose?

You need to be extremely careful when choosing, the operation of the car engine depends on it. The best solution is to trust the technical recommendations of the machine manufacturer. In the transport passport or instructions for use, you can find the appropriate recommendations. The manufacturer usually tells in detail which spark plugs are suitable for the car. So that motorists can easily select products, each has its own marking. For clarity, it is worth considering a standard marking example. We take a product marked AU17DVRM and try to figure out the meaning of its code.

• A - thread on the body M14x1.25 mm
• U - head size for hexagon 16 mm
• 17 - glow number
• D - length of the threaded part 19 mm
• B - the thermal cone of the insulator protrudes
• P - built-in resonator to reduce radio interference from the ignition system
• M - copper electrode

It is worth giving preference to products from trusted manufacturers. To date, 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 about some of them in more detail:

1. Bosch. These products are famous for 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 motorists a huge selection, among which everyone can choose something suitable. Such products can work even when the battery is low, and are notable for their long service life and environmental friendliness. Many products of this manufacturer are considered universal, they can be combined with a large number of cars.
2. Denso. They are considered a more affordable option when compared with other manufacturers. But at the same time, among their advantages, one can distinguish a long service life, versatility of products, the ability to self-clean when working 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 involved in the creation of candles offers products to Ferrari, Volkswagen, BMW, Volvo.
3. NGK. This product also has a long service life, it can be used for 50 thousand kilometers. Regardless of what the battery charge is, 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 the choice, it is better to be guided by the recommendations given by the manufacturer of your machine. The instructions that come with the car always have detailed recommendations on this matter. It says which brand is installed at the factory and is the best 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 that are unlikely to be found in the manufacturer's recommendations. At the same time, it is worth considering whether such a purchase will justify itself? When choosing, you must take into account the average speed of your ride, and the type of fuel used. Is it worth it to buy expensive candles 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.

Marking the product greatly simplifies the choice, but it must be borne in mind that at present there is no single marking standard, you need to know the decoding of the code of this particular manufacturer. Of course, this is not convenient, because for candles from different manufacturers, alphanumeric designations can be deciphered in completely different ways. Therefore, it is worthwhile to understand the code on the candle more carefully.

When should spark plugs be changed?

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

1. Turnovers began to gain much more slowly.
2. The power of the car is noticeably reduced, it is felt when driving.
3. Fuel consumption during wear increases significantly. This can also be observed with other malfunctions, but when the candles are worn out, this is one of the main indicators.
4. It is worth paying attention to the appearance of the product, it can tell whether the part is worn out or not.
5. The machine 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.
6. Unstable operation of the motor may be observed, it may twitch during the trip, troit, so to speak. It can also work in waves, which will also be felt.
7. Due to the unstable operation of the motor, the corresponding vibrations are transmitted to the cabin.

Spark plugs for popular cars

When you realize that it's time to replace the products, you should start looking for a suitable option. Many motorists refuse to purchase the so-called heaped spark plugs. This applies to such budget cars as Hyundai, VAZ, Solaris, Logan. It also makes no sense to buy expensive products for drivers whose cars are under warranty. The fact is that the replacement of candles in this case is necessary for each passage of maintenance. Practice shows that, on average, a car manages to cover about 15 thousand kilometers during this time. Therefore, there is no point in purchasing expensive products.

More expensive candles promise a long service life, but if a replacement is required according to the regulations, then they will have to be changed. And an ordinary nickel candle easily passes 15 thousand kilometers, while it is recommended by the car manufacturer. Each manufacturer has models that are included in a number of budget ones. So, for Logan, if it is under warranty, you can pick up budget options BERU Ultra X UXF79, NGK BKR6E. Their cost is affordable, it will take about 150 rubles to purchase.

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 fully functional, as well as the fuel and air systems. The product manufacturer cannot guarantee stable and long-term operation if the system is defective.

Therefore, the best solution would be to make sure before buying that everything is in order with the machine. The system should work properly on good fuel. If you find any problems, then the best choice would be to deal with the technical part. Only after that it will be possible to change products for new ones. So you avoid wasted spending.

When making a purchase, remember that it is worth checking the spark plugs before you pay for them. Dirt on the electrodes, lack of marking, deformation of the components of the product can indicate a fake or a marriage. If you regularly carry out diagnostics, change candles in a timely manner, you can count on a long engine life.

The correct operation of an automobile motor largely depends on the serviceability of the spark plugs (SZ) used. The range of SZ today is so huge that any consumer can choose devices for his car, based on preferences and financial capabilities. How Denso is carried out on a car, what these SZs are and what disadvantages are characteristic of them - read about this below.

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Characteristic

Denso spark plugs, judging by the reviews of many motorists, are today one of the highest quality and most efficient products for the ignition system. Among hundreds of brands, Denso is the first to patent the TwinTip technology used in the TT production line. Such devices are made with a central electrode, which is made of nickel, with a reduced diameter, in this case it is 1.5 mm. It should also be noted that the side electrode size was similarly reduced to 1.5 mm. The company produces products not only for gasoline engines, but also for gas (the author of the video is the DENSO Russia channel).

We suggest that you familiarize yourself with the main features characteristic of the Denso SZ, regardless of what heat number they have:

1. Products of this brand are characterized by improved discharge formation. According to the manufacturer, in fact they achieve the greatest efficiency. It should be borne in mind that precious metals, for example, iridium, are not used in the production of such products, respectively, the cost of such devices is lower. This is reflected in their final price.
2. In iridium or platinum SZ, the electrodes are made of iridium or platinum, respectively. The cost of such products is higher, but their service life is really impressive. In the first case, it ranges from 60 to 120 thousand kilometers, depending on the thickness of the central electrode, in the second - 70-80 thousand kilometers.
3. According to Denso official data, products from Denso allow you to provide improved performance at a relatively low cost.
4. To produce a spark and start a car engine, Denso C3s require much less voltage. This means that the power unit can be started much faster, in particular, we are talking about starting in frosty conditions.
5. Since Denso products have a thinner center electrode, the discharge itself will be more powerful, and therefore the work efficiency will be higher. This is also important in winter working conditions. As mentioned above, the electrode size is 1.5 mm, while in standard SZ it is about 2.5 mm.

Range

Now we offer you to get acquainted with the lines of devices manufactured by the Denso brand:

• NickelTT;
• Iridium TT;
• standard;
• Platinum Longlife;
• Iridium Power;
• Iridium Racing;
• Iridium Tough.

Photo gallery "Models SZ Denso"

Advantages and disadvantages

For a more complete picture, we also recommend that you familiarize yourself with the advantages and disadvantages of SZ. We are talking about all models, and about k20tt, k16tt, w20tt, ik20 in particular. You have compiled a list of pros and cons in accordance with customer reviews, so you can be sure of the veracity of the information below.

First, let's look at the benefits:

1. When installing such SZ, less harmful substances will be emitted into the environment. Due to the fact that the formation of a discharge on the electrodes of such SZ has become improved, in general, the process of combustion of the mixture in the engine will be more stable. Ultimately, the use of such SZ makes it possible to reduce fuel consumption and reduce the amount of harmful emissions into the environment. The advantage of reduced consumption is relevant only for those vehicles whose engines are set up correctly and operate in general without failures. The savings itself will be low - no more than 5%.
2. Large selection of devices in different price categories. This allows you to choose products for any type of car.
3. Since the spark formation has been improved, the combustion parameter of the combustible mixture also increases. This makes it possible to ignite even an excessively lean air-fuel mixture. Eventually misfires may and will continue to occur, but this will happen much less frequently.
4. In the event that your vehicle is equipped with a gas-cylinder installation, then you can use products of the Tough line specially designed for such engines. Devices of this model are equipped with a platinum tip, which is installed on the side electrode. It should be noted that, in fact, such devices have a higher wear resistance, and this is especially important for gas engines. This information is also confirmed by consumer reviews. It is also necessary to take into account the fact that, in general, the temperature of the power unit when operating on liquefied gas is higher. So if the engine runs on such fuel, then the combustible mixture will burn at a higher temperature.
5. In addition, Denso products have their own self-cleaning system. Thanks to the use of modern technologies in the production of Denso produces products that, as a result of long-term use, clean themselves. Such products are not afraid of the problem of soot, which ultimately also allows them to increase their service life.
6. Iridium products are more resistant to corrosion, which can significantly increase their service life, as well as the quality of work (video by Mikhail Vlasov).

As for the cons, they are as follows:

1. The first drawback is that there are many fakes on the market. As you might guess, fake products will not be able to boast such advantages as the original ones, at least because the glow number is different in them. Accordingly, the service life of such devices will also be low.
2. Separately, it must be said about the resource of operation. Judging by the reviews, in some cases it will be lower, in particular, the owners of vehicles that run on gas and diesel write about it. In any case, even the reduced service life of gas SZ will still be higher than that of the same products from other manufacturers.
3. High price. Everyone knows that high quality is due to high cost, but not all consumers can afford such devices.
4. In addition, in some new spark plugs, the gap itself is not set to work.

Marking

You can learn more about marking, as well as decoding the designations, from the table below.

Selection Options

We will not talk much about the choice. The choice is made in accordance with the technical parameters of a particular vehicle. When buying, it is important to buy exactly the original, and not a fake, we will tell you more about their differences below. Denso's official website offers consumers a great opportunity. In accordance with the parameters entered in the form about the car, the system automatically calculates and provides the user with the SZ models, the use of which is allowed in the car.

How to distinguish the original Denso from a fake?

In order not to throw money away in vain, we recommend that you familiarize yourself with how to buy the original correctly. Diagnostics of the purchased product can be carried out both by the appearance of the device and by its internal structure.

You will carry out visual diagnostics:

1. Inspect the item carefully. In the original candles, the surface of the contact output is more matte. As for fakes, this surface is glossy in them.
2. Pay attention to the inscriptions indicated on the case. In counterfeit products, if necessary, the text can be removed with a fingernail or a coin, and this is done very quickly. In original products, it is almost impossible to remove text, at least it is much more difficult to do so.
3. Carefully inspect the device thread itself and the electrode. Directly, the quality of the execution of these structural elements in fakes is lower, this will be noticeable.
4. If we talk specifically about the case of devices, then in fake products it is not as high quality as in the originals. In particular, in this case, it means that the surface of the case is processed not so well.
5. If you still buy a fake, then when operating a car, you will notice that when driving uphill or at high speed, engine power may decrease for no reason. But then she can also recover on her own. Accordingly, fuel consumption when using fakes can also be higher. The difference is not critical, but you can trace it only with an accurate flow measurement.
6. With prolonged use, the side electrodes of the products may begin to melt. This can be monitored by periodically checking the status.

Issue price

The cost of SZ Denso depends on the model. For example, the most affordable models - WF20TT and W22TT - cost around 450 rubles for a set of four. Models of the middle price category will cost the buyer about 600-700 rubles per set. The cost of more expensive options will be more than 1 thousand rubles for 4 pieces.

The stable operation of the power unit depends on the timely ignition of the combustible mixture in the engine cylinders. Ignition occurs due to an electric spark, which is reproduced by spark plugs as a result of the breakdown of an air gap by an electric charge. The course of this process depends on the parameters of both the entire ignition system and the candles themselves. Therefore, it is very important to choose high-quality candles that will ideally fit the model of your vehicle.

One of the most famous manufacturers of automotive spark plugs, known for their quality, is the Japanese subsidiary of DENSO, which is part of the Toyota automobile concern. The company supplies the world market with a huge variety of automotive components, including candles. These parts are designed for a huge number of car models and have various parameters that must be considered when buying new spark plugs from this manufacturer. It is worth noting that only high-quality materials and components are used in the production process, so DENSO products have a long service life.

A little about car candles

The efficiency and durability of spark plugs depends on their design and the physical and chemical properties of the materials used. The process of operation of these parts is associated with high temperatures and pressure created by the combustible mixture in the cylinders of the power unit. Therefore, in order to increase the efficiency and resistance of candles to critical temperatures, high-quality electrodes are used in the production process, made from the highest grades of steel with the addition of nickel and manganese. Some models use platinum soldering, so these candles last much longer than their cheaper counterparts.

How to choose the right spark plugs?

The DENSO concern is engaged in the specialized production of automotive candles, covering a huge number of car models. On the packaging of each product there is a technical specification, which indicates the full compatibility of the product with various brands of machines. In addition, car manufacturers in the technical data sheet for the vehicle also indicate the recommended components that are best suited for a particular model.

Therefore, when buying spark plugs, the choice must be made based on this information, since consultants in car dealerships do not always recommend the best option to motorists. Moreover, a special online service has been implemented on the official DENSO website, with the help of which you can select the recommended candle model in a matter of seconds, simply by indicating the model of your vehicle.
In addition, today there are many other resources on the network that provide such services for free. The algorithm of their work is absolutely identical, so it will not be difficult to figure out how each of them works.

How to choose candles?

The company's product range includes a large number of models of spark plugs. Possessing various technical characteristics. The manufacturer focuses on different price segments of the market, therefore, for one model of the power unit, several options for candles may be suitable, which may differ in manufacturing technology, design features and materials used. For example, there are single or multi-channel plugs, or some models use iridium soldering, while others use platinum. One of the highest quality products are plasma pre-chamber candles. All of the above options will work equally well with the same motor.

Thus, in order to choose the right DENSO spark plugs for your car, you need to have a good understanding of all the products of this company. However, thanks to the integrated online service, this process becomes much easier and reduces the amount of time spent.

Why are online services good?

Before proceeding to the consideration of the principle of operation of these services, it should be immediately noted that they are not the solution to all problems, since along with the advantages, they also have certain disadvantages.

The most common service for the selection of DENSO spark plugs is the official dealer portal. To use the service, you need to go to the website to the electronic catalog with the company's products, which has two filters. The first allows you to search for models by vehicle brand, and the second - by item number, specification or product marking.

The search algorithm for the required type of spark plugs is as follows:
1. In the drop-down list "Select products" there is a complete catalog of product groups manufactured by the company. In the following subsections, you must select the manufacturer of the vehicle, the model of the car and the power unit, as well as the year of manufacture.
2. After specifying all the necessary parameters, a summary table will be displayed below the search form, in which all models compatible with your vehicle will be indicated.

Among the main advantages of this site is an unobtrusive design, the absence of advertising that distracts from the selection process, as well as easy navigation and usability. The main disadvantage is the impossibility of buying the selected products, since the electronic catalog is only informative, and in order to purchase the selected spark plugs, you will need to look for a store separately.

Another popular resource among motorists is Spare Parts South of the Russian Federation, whose office is located in Stavropol. The search process on this site is superbly streamlined and intelligent. All car models are sorted into categories in alphabetical order. After choosing your car model, the service will give you all the suitable options.

The advantage of this online service is convenient navigation and a simplified search process, thanks to which it will not be difficult for even a novice driver to choose the right candles. But the only drawback is that the ordering procedure is too complicated, so motorists will have to suffer a little when buying.

And finally, the last resource that allows you to choose DENSO automotive spark plugs is Biling, located in Moscow. The interface and search algorithm are almost completely identical to the two resources discussed above. A very simple interface allows you to quickly find the right candle model. However, as in the previous case, the ordering procedure is very complicated, so it will take some time to complete the purchase. Developers should have placed a "Buy Now" button next to each product. Such a solution would greatly facilitate the life of motorists.

(SZ) are an integral element of the ignition system of any car. Accordingly, if you want them to last for a long time, the choice of these components must be approached with all responsibility. In this article, we will talk about what Denso spark plugs are, what features they have and how the selection is made by car.

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SZ features

So, if you decide to purchase Denso ik20, k20tt, w20tt, k16tt, then before you make a selection for your car, we recommend that you familiarize yourself with the features of the product. It should be noted that the Japanese brand Denso is the first to patent the TwinTip technology used in the TT line with a central nickel electrode with a reduced diameter of 1.5 mm. In addition, the size of the ground electrode was also reduced to a diameter of 1.5 mm.

So, let's move on to the features that the original iridium spark plugs Denso ik20, k20tt, w20tt, k16tt and others with different glow ratings have, unlike fakes:

1. SZ models ik20, k20tt, w20tt, k16tt and others with improved sparking actually achieve the maximum efficiency of iridium candles. However, the production of such SPs takes less money, since they do not use precious materials.
2. According to the manufacturer, the SZ ik20, k20tt, w20tt, k16tt and other models are characterized by improved performance at significantly lower costs.
3. Nickel TT devices ik20, k20tt, w20tt, k16tt and others require less voltage to start the power unit. Accordingly, the engine can be started much faster even at the lowest temperatures.
4. As a result, the models ik20, k20tt, w20tt, k16tt and others have a thin central electrode with a diameter of 1.5 mm (standard - 2.5 mm). Accordingly, the resulting spark is more powerful, the efficiency of its work is higher. And this, you see, is very important, especially at low temperatures.

Range

The Denso range includes many products with different heat ratings.

We are talking about both iridium and platinum, as well as nickel SZ:

• Nickel (Nickel) TT;
• Iridium TT;
• Standard;
• Platinum Longlife;
• Iridium Power;
• iridium racing;
• Iridium Tauf.

Advantages and disadvantages

Below are the main advantages and disadvantages of iridium and nickel SZ models ik20, k20tt, w20tt, k16tt and others with excellent heat rating. The information below is based on official data as well as consumer reviews.

Advantages that will allow you to make a choice:

1. Reducing the level of emissions into the atmosphere. As a result of the improved sparking in ik20, k20tt, w20tt, k16tt and other models, the combustion process itself is more stable. Accordingly, the operation of SZ ik20, k20tt, w20tt, k16tt and other options can reduce fuel consumption, as well as reduce CO and CH emissions into the atmosphere.
2. Due to the improved sparking of CZ with a good glow number, the ignition index is improved. As a result, candles ik20, k20tt, w20tt, k16tt and others from the Denso brand allow you to ignite even the most lean combustible mixtures. Accordingly, misfiring in the system will occur much less frequently when compared with other SZ or fakes.
3. If you choose originals with an excellent heat value, instead of a fake or standard SZ, then during normal operation of the sludge unit, you can save five percent on fuel consumption - gasoline, diesel or natural gas.
4. If your car runs on natural gas, then Iridium candles with a high glow number of the Tauf (Tough) line will suit you. Such SZ are equipped with an additional platinum tip on the side electrode. In addition, they are characterized by high wear resistance, which is especially important for power units operating on gas. It should be remembered that the temperature of the internal combustion engine on gas is higher. Accordingly, if the engine runs on gas, then the fuel mixture will burn at elevated temperatures.
5. Possibility of self-cleaning. The use of modern technologies allows candles to be cleaned on their own during long-term operation, so the problem of soot is no longer terrible (the author of the video is Hands in Oil).

Flaws:

1. Lots of fakes. In fakes, the glow number differs from the original. Accordingly, the owner of a car running on any fuel, including gas, will not be able to experience all the benefits of a Denso product.
2. If the product itself is not original, its service life will be lower. However, car owners of cars running on diesel and gas periodically write in reviews that the service life of the originals is less than stated.
3. High price. But in most cases, this is due to high quality.
4. On some new SZs, the gap was not initially set to work. This is confirmed by the reviews of motorists.

Marking

If you want to make the right selection of iridium candles for your car, it will be useful for you to familiarize yourself with the marking and decoding of the symbols, which are given in the table below:

Marking and interpretation of the designations of Denso spark plugs

How to distinguish the original Denso from a fake?

So, in order to purchase original SZ for your car, you need to know exactly how not to fall for a fake. There is a method of checking in appearance, as well as the internal structure of the device.

A visual aid - what is the difference between Denso originals and fakes

Of course, when buying, you will make a visual inspection:

1. On fakes, the contact terminal of the candle has a glossy surface, while on the originals it is more matte.
2. Unlike originals, Denso branded print on fakes can be easily scraped off. It is very difficult to erase this text on the original.
3. As for the case itself, on fakes it is made of less quality, in particular, we are talking about a low level of surface treatment.
4. The quality of threading, as well as the electrode itself, is lower in fake SZ, this can be seen with the naked eye.
5. When using a fake, you will notice how the power of the power unit begins to decrease on climbs, as well as at high speeds.
6. Fuel consumption can be increased, this must be monitored.
7. Over time, the side electrode SZ will begin to melt, periodic diagnostics will help to understand this.

Greetings friends! Tell me which of the motorists bothers when choosing spark plugs. For the sake of decency, we asked a couple of questions to the seller and took the first ones that came across, often cheaper. And this is a respected, extremely wrong approach! Today, I will explain to you why! More specifically, we are interested in Denso spark plugs, because they are the world leader in the production of such products. That is, as for the brand, it’s really not worth choosing for a long time, they took the most popular and it’s in the bag! But even in this case, it turns out that there are more than enough nuances in casting a glow plug ...

"Denso" - the best candles in the world!

In 1949, the Denso engineering company was founded on the Japanese islands, which today has its subsidiaries in many countries of the world, of course, there is also a Japanese branch in our country. The concern is the main player in the global auto parts market and I must say it is absolutely deserved! The plant produces not only candles, but brand new generators, scanners, sensors, starters and other components come out of its assembly line.

Of course, due to the high quality and reliability of the products, all the major auto giants of the planet buy parts from the Japanese manufacturer. Subaru, Opel, Toyota, Volvo, Citroen - these and many other corporations have been successfully cooperating with Denso for many years.

Range of spark plugs

Just think, the company's price list includes more than six thousand different positions, isn't it a little, right? This number of manufactured products is designed for 99% of the entire fleet of the Eurasian continent! As for candles, there is also plenty to choose from, let's look at some of the most popular series.

Candles standard

From the name itself it is clear that this is Denso's most popular spark plug. Such a model can be used on any gasoline engines all year round, and therefore is considered universal. The innovative technology of the U-groove, which is used in the production, can significantly reduce the saturation of exhaust gases with harmful impurities, ensure efficient fuel ignition and, most importantly, reduce consumption by as much as 5%!

Having adopted a huge number of reviews, I have identified several clear advantages of the Japanese candlestick over competitors:

• Significantly longer service life, up to 70 thousand km.
• Wide range of thermal coefficients.
• Efficient heat distribution.

In addition, due to the nickel coating, the standard candle has a high level of heat resistance. If you have a mid-range car, the best option would be something like the Denso k20tt! A spark plug of this type, even though it costs a little more than domestic counterparts, but excuse me and its resource is higher!

Platinum line

Denso was the first to cover the central and side electrodes with platinum, so the specialists wanted to increase the service life of the candles. And I must say they did not fail, not only did the declared resource of candles grow to 100 thousand kilometers, but also almost all competitors began to use the technology, is this not a sign of success!

Moreover, candles of this type (for example, here k20pr u11) are able to produce an effective spark even with a significant drop in battery voltage! What cars are they recommended for? According to statistics, Japanese and not only automakers prefer the Platinum line when producing premium cars. Logical, isn't it?

Iridium Power

Iridium is a metal whose characteristics are very similar to platinum. So, it has excellent resistance to corrosion even at critical temperatures (2000 Celsius is not the limit!), while the cost of iridium is an order of magnitude lower than platinum. The technology for coating electrodes with iridium was also developed at Denso. Candles of this group, such as ik20tt4, have a number of positive advantages:

• Wear resistance and therefore durability- no lower than the platinum models, and the price is lower!
• Powerful spark - allows the motor to instantly respond to the position of the accelerator.
• Ultra-thin central electrode with a diameter of only 0.4 mm(there are no analogues at the moment) - eliminates the possibility of interruptions in the operation of the engine.

In addition to those described above, you can find 4 more types of Denso candles on the shelves of a car dealership, and we will briefly consider them.

Iridium Tough

A combination of the previous two lines, equipped with a 0.7 mm needle-shaped ground electrode. Such a candle will reduce the emission of harmful substances from the exhaust, the fuel consumption of your car by 7%, while increasing its power!

Iridium Racing

Produced specifically for sports cars (karts, rally cars, etc.) using a special technology. Its uniqueness lies in the same electrode, this time the central one is made of an alloy of rhodium and iridium, and platinum tips are used for the side electrode.

Note: the use of sports candles on ordinary cars is allowed, but it is imperative to take into account the glow number, because such a product is designed only for high-octane fuel.

Nickel (Twin Tip)

Very similar in characteristics with the standard type, including the cost. Their distinguishing feature is again in the electrodes, which are made of nickel. Surely many of you have heard about the denso k16tt in motoring circles. A spark plug of this type will reduce consumption by up to 7% and make it easier to start the engine, stable glow ignition and a powerful spark of k20tt help in this. Applicability - fully universal fit on 80% of all cars in Europe.

Disadvantages of Denso spark plugs

With the positive characteristics of spark plugs of this brand, I hope everything is clear, I will not repeat myself and immediately move on to the minuses. There are several of them:

1. Valuable - it is somewhat higher than our counterparts, but the difference in quality, as I said, is quite significant.
2. Vulnerability to counterfeit- just a huge number of underground enterprises all over the planet that produce copies of Japanese Denso candles, so you need to be very careful when choosing.
3. Knocked gap - for most new parts, the operating gap will have to be set by the buyer.

If you really want to overpay for good reason, you will have to prepare for the purchase! First of all, it is important to be able to read the markings of candles! Here I will prompt, the decoding is carried out according to the table located above.

How not to buy a fake?

If you are already pretty tired of fakes, you got a misfire in the ignition, you don’t need to look for reasons, everything is clear - marriage! I will give you a couple of tips for high-quality identification of the original!

1. The body, thread and, in general, the candle, are not of high quality, often this can be seen with the naked eye.
2. The surface of the contact output should not be glossy, but matte.
3. The very inscription on the candle on a fake is easily torn off.
4. When using a duplicate, fuel consumption may increase, and traction may decrease.

I am sure you managed to separate the "flies from the cutlets" and right now you are enjoying the virtues of Japanese Denso candles. If this is far from the case, remember, do not get excited, the complete absence of a spark is not at all a sign of a malfunction, it may be required). Hope it was helpful, all the best!