What are the benefits of changing spark plugs? How often do you change spark plugs for new cars?

The function of the spark plug is to release the high-voltage electricity converted by the high-voltage coil between the center electrode and the side electrode, thereby igniting the combustible mixture in the combustion chamber and maintaining the normal operation of the engine. This means that the spark plug needs to withstand high temperature and high pressure, and there will be carbon deposits after a long time, which will affect the electrode discharge and then affect the performance of the engine.

Therefore, the benefits of regular replacement of spark plugs are very obvious. Regular replacement can ensure more complete ignition and make the mixture more fully burned to achieve fuel saving; the mixture can be fully burned, then the engine will have high efficiency and exhaust emissions. better.

And how often the spark plug of a new car is replaced is also certain. Generally speaking, each brand of auto manufacturer has its own recommended replacement cycle. For example, GACHondaThe manufacturer recommends that the spark plug be replaced every 100,000 kilometers after the new car hits the ground, and inspections should be carried out for every major maintenance.

However, the spark plug does not necessarily have to be replaced at the time specified by the manufacturer, and it can be determined according to the use of the spark plug. If the spark plug is about to die, it usually has the following performance:

1. The engine shakes obviously and it is easy to stall;

2. Increase in fuel consumption and decrease in power;

3. Exhaust gas has a strong smell of gasoline and black smoke.

When checking the spark plug, ifdiscoverThe following conditions also indicate that the spark plug needs to be replaced:

1. A lot of carbon deposits near the electrode of the spark plug;

2. Deformation of the electrode;

3. The white ceramic insulator has burnt marks.

Generally speaking, the price of spark plugs is not very high, the price of a spark plug is about 70YuanAround, a group of four is less than 250 yuan. Timely replacement of spark plugs can help improve engine efficiency and reduce fuel consumption. Overall, the price/performance ratio is very high.