How many kilometers does the spark plug need to be replaced?Replace several spark plugs at a time

The engine is the "heart" of the car, I believe everyone is vomiting. Since it is a heart, it must be a snack for maintenance. As an important part of the engine, the spark plug has a pivotal position. Without a spark plug, the cylinder can't blow up, let alone the vehicle. Here is the common sense of popular science spark plugs, so that you will no longer be a novice in the car.

Generally speaking, ordinary spark plugs can be replaced for 20,000 kilometers, and platinum or iridium spark plugs can reach a replacement cycle of 60,000 kilometers or more. The spark plug has its own replacement cycle, because the electrode of the spark plug is divided into different materials, and the service cycle is also different. The vehicle manual will indicate the number of kilometers for the replacement of the spark plug of the vehicle.

How many spark plugs are changed at a time?

Normally, the spark plugs should be replaced all at once. In theory, even if it is replaced with the same brand and model, the discharge gap of the new and old spark plugs is different, and the resistance value of the new and old spark plugs is different. Failure to replace all of them will cause problems such as jitter, difficulty in acceleration, and increased fuel consumption. There are also spark plugs. For a certain life, the quality and life of the same batch of products should be very close. Since one or two of them have problems, it means that the other spark plugs are coming to an end. So replace them together to prevent future troubles.