天然气的车火花塞多少公里一换？

How often should natural gas spark plug be replaced?

Natural gas spark plug should be replaced every 3 to 5万公里. However, the replacement interval may vary based on different brands and engines. It is recommended to follow the guidelines in the vehicle's use manual. As a general rule, a platinum spark plug should be replaced at 4万公里, a nickel-copper spark plug at 2万公里, and an iridium spark plug at 6-8万公里.

Here are the steps to replace a spark plug:

1. Open the engine cover and remove the plastic cover plate.

2. Discharge the high voltage wires and make a note of their position to avoid confusion.

3. Use a spark plug wrench to remove the old spark plug. Be sure to clean the area around the plug thoroughly.

4. Install the new spark plug into the socket and twist it by hand. Then, use the wrench to secure it.

5. Reinstall the high voltage wires in the correct order and secure the cover plate.

It is important to note that the replacement interval may vary depending on the vehicle brand and engine type. Therefore, it is recommended to follow the guidelines in the use manual. Also, the spark plug should not be touched with hands during the replacement process to avoid contamination.