How long is the life of a spark plug? When should I change it?



How often do the plugs change?
It

The spark plug of the car is like the fire stone in our lighter, which ignites the fuel mixture in the cylinder of the engine by high pressure discharge, and if there is no spark plug, the engine can not run at all.



However, the spark plug is a wastage and has a life expectancy. How long can it last? Well, it depends on the type of spark plug. The spark plug is mainly seven kinds of electrode materials: nickel alloy, silver alloy, yttrium gold, platinum, iridium, double iridium, iridium platinum spark plug. It sounds as if the price is very expensive.

Of course, the quality of these spark plugs is also different. Their lifespan ranges from 20 thousand km to 150 thousand km, and the difference is very large.



Like the most common use of the nickel alloy spark plug for household cars, life is about 20 thousand kilometers, although the performance is very common, but the biggest advantage is that it is really cheap, more than ten dollars can buy one, bad and no pain, so many people will choose to buy this spark plug.



In addition, the platinum spark plug, basically can be used in the last 3 years ~5 years, is a better quality spark plug, and a good bit of this platinum, the central electrode and side electrodes are platinum, a longer life, about 80 thousand kilometers.
Also, the quality of the iridium spark plug is better. Basically, there is no big problem in the first 100 thousand kilometers.



In addition to life expectancy to replace the spark plug, in fact, the car's carbon deposition is more serious, will also be attached to the spark plug electrode, resulting in a decline in performance.