What is the NGK spark plug model for Besturn B30?

[AddysonLee]

Besturn B30 originally used Bosch nickel alloy spark plugs with the model FR7HE2, and later switched to NGK spark plugs with the model ZFR6V-G. The spark plug is a crucial component of a gasoline engine's ignition system. It introduces high voltage into the combustion chamber, causing a spark to jump across the electrode gap, thereby igniting the combustible air-fuel mixture in the cylinder. A spark plug mainly consists of a terminal nut, insulator, terminal post, center electrode, side electrode, and shell. It is installed on the side or top of the engine. In the past, spark plugs were connected to the distributor via ignition cables, but over the last decade, most car engines have transitioned to direct connection between the ignition coil and the spark plug. The main types of spark plugs include: standard spark plugs, projected insulator spark plugs, electrode spark plugs, seat spark plugs, surface gap spark plugs, and surface discharge spark plugs.