How to Choose Spark Plugs?

[DavidAnn]

Selecting spark plugs involves the following methods: 1. Spark plug size - choose the same model as the one used by the engine; 2. Spark plug heat range - hot-type spark plugs are suitable for low-speed engines, while cold-type ones are better for high-speed engines; 3. Spark plug material - select a material that is equal to or better than the original factory material; 4. Spark plug structure - choose the appropriate spark plug type based on your vehicle's condition and personal preferences. Spark plugs are crucial components in a gasoline engine's ignition system. They introduce high voltage into the combustion chamber and create a spark by jumping the electrode gap, thereby igniting the combustible mixture in the cylinder. A spark plug mainly consists of a terminal nut, insulator, terminal stud, center electrode, side electrode, and shell.