What is involved in spark plug maintenance?

Spark plug maintenance primarily involves checking and replacing spark plugs as needed. Spark plugs are essential components of a gasoline engine, responsible for igniting the air-fuel mixture in the combustion chamber.

Regularly checking spark plugs allows you to assess their condition, ensuring they are not fouled, worn, or damaged. Signs of wear might include eroded electrodes or deposits built up on the spark plug's surface, which can lead to poor engine performance, reduced fuel efficiency, and difficulty starting the engine.

Replacement of spark plugs is crucial at specific intervals or if any issues are detected during inspection. New spark plugs ensure optimal combustion and, consequently, better engine performance. Therefore, paying attention to spark plug maintenance is vital for the overall health and efficiency of an engine.

In contrast, other options such as cleaning fuel injectors, inspecting the air filter, and testing engine compression, while important for engine maintenance, do not directly involve spark plug upkeep.