Some brief introductions about spark plugs

According to the material, the spark plugs can be divided into nickel alloy spark plugs, platinum spark plugs and iridium spark plugs. According to their appearance, they can be divided into: standard spark plugs, electrode spark plugs, edge protruding spark plugs, seat spark plugs, and surface spark plugs. The value can be divided into: cold spark plug and hot spark plug (extremely burning iridium spark plug, fuel consumption is more than 10%, and automobile fuel consumption is better). The spark plug must be matched with the engine and cannot be used indiscriminately or universally. Spark plugs with shorter skirt lengths are called cold spark plugs, which are suitable for high-speed and high-compression high-power engines; spark plugs with longer skirts are called hot-type spark plugs, which are suitable for low-to-medium speed and low compression ratio low-power engines. When selecting a spark plug, it is necessary to ensure that the size of the old spark plug and the new spark plug are the same. The size of the spark plug will be printed on the ceramic insulator of the skirt. It doesn't matter if you don't understand it. Just make sure that the numbers and letters of the new and old spark plugs are the same.