Spark plugs for gas engine: how to choose the right

Let's start with that, that recently against the background of constantly rising prices for gasoline and diesel fuel installation of HBO on the car with the gasoline engine became really mass phenomenon. This option allows you to get the maximum benefit, as the conversion of a gasoline car to a cheaper gas makes it possible to significantly reduce fuel costs.

More to add, that diesel models, even with high efficiency, are more expensive than gasoline, and are not without a number of their own problems. As for electric cars, such cars are still in the minority. It turns out, in fact, the only available alternative is the ability to convert the car to gas.

However, not all motorists after the installation of HBO take into account a number of features and nuances, which occur after a change in fuel type. In other words, that the engine worked normally on gas, and there was no reduction in the resource of the internal combustion engine, you need not only to properly install and configure HBO, but also replace some items and working fluids.

To be precise, we are talking about motor oil for gas engines, as well as about spark plugs. If with engine oil everything is more or less clear, then there may be difficulties with candles. Next we'll talk about that, why change spark plugs for HBO, as well as what to consider and how to choose the right spark plugs for gas engines.

Why do you need "gas" spark plugs when switching from gasoline to gas

Usually, qualified specialists after installing HBO on the car separately recommend immediately replace the spark plugs. Special spark plugs for gas engines should be used for replacement, which are somewhat different from the usual.

The need for such a replacement is dictated by that, that ordinary candles are designed for that, to ignite the mixture, which consists of gasoline and air. Conventionally, this mixture is more "dense". At the same time during the combustion of this mixture there is a certain temperature.

If we talk about gas, the main differences are, that the mixture of air and gaseous fuel has a high electrical resistance, as well as higher temperatures during combustion.

It turns out, if you use ordinary "petrol" spark plugs when working on gas, the life of such candles is greatly reduced, that is, there is a rapid failure. Also taking into account insufficient efficiency the general processes of combustion of gas-air mix in cylinders are broken, which leads to a decrease in engine power and negative consequences for the engine.

Given these features, spark plugs for gas engines have a slightly reduced gap between the electrodes compared to traditional counterparts for motors., which run exclusively on gasoline. However, this is not all, because constant work in elevated temperatures means, that gas spark plugs should be more resistant to such heat. In this case, their service life must meet generally accepted standards.

For this reason, gas candles are often multi-electrode, the electrodes of such candles are made using expensive components. We are talking about electrodes, which are made of special alloys using expensive rare earth metals. It's not hard to guess, what we are talking about iridium and platinum spark plugs, which are quite expensive.

The central electrode is made of iridium, platinum coating irrigates the side electrodes, copper rod at the base of the side electrodes allows you to effectively remove excess heat. The design of spark plugs for gas engines can also be improved (the case is covered with an additional protective layer, etc.)

Selection of spark plugs for the engine with HBO

Given the above, it becomes clear, that the spark plugs need to be replaced after switching to gas fuel. This will achieve the required service life of these elements, and eliminate problems, associated with the completeness of the combustion of charge in the cylinders.

In other words, to reduce carbon black and achieve maximum recoil from the gas engine, special candles are needed. It would seem, there should be no problems with selection, however, in practice there are some difficulties, although HBO has long been widespread.

so, let's look at the most popular spark plugs for gas engines, as well as their pros and cons. At the very beginning it is worth paying attention to that, that many candles are on sale today, which are positioned as solutions for HBO motors. At the same time, a large selection not only does not make it easier, but also somewhat complicates the task of finding the most optimal solutions.

• If we turn to the experience of motorists themselves, as well as analyze the recommendations of experts, Japanese spark plugs stand out. In the case of HBO, the position of Denso IW20 deserves special attention.

Let's note at once, the cost is quite high (close 10-12 у.о.. for one candle, that is, at least 50 USD for a set of 4 things). However, such a high price is partly justified, that this position Denso increases engine power by 3-5%, also reduces gas consumption by 5-7%. As for the service life, elements are able to work out the claimed resource in full.

• In second place in the list of best candles for HBO were again Japanese products. Now we will talk about the NGK Laser Line 2, who have shown themselves worthily on motors, who use gas.

Their main difference from the competitor is twice the cost (from 110 у.о.. for a set). This is due to the fact, that the active use of iridium and platinum has increased their service life to 200 thousands of kilometers.

• Now let's move on to more affordable options. Among such products are Bosch WR7DP spark plugs, which are specially designed for gas engines.

In practice, these candles have a good overall "margin of safety" and wear resistance of the electrode. The disadvantages are the shorter service life compared to expensive counterparts, and these candles are inferior in power to the spark.