Where to Check the Heat Range of Spark Plugs?
1 Answers
The heat range of a spark plug is represented by numbers, which are usually located in the middle of the model number. For example, in the model BP5ES11, the number 5 indicates the heat range of the spark plug. Below is relevant information about spark plug heat ranges: 1. Introduction: Different brands have different heat ranges, and each brand's heat range corresponds to specific vehicle models. The heat range of a spark plug essentially refers to an indicator of its heat absorption and dissipation capabilities. The higher the engine speed, the higher the required cooling heat range. 2. Heat Range Scale: The heat range includes numbers from 1 to 9, where 1 to 3 represent low heat ranges, 4 to 6 represent medium heat ranges, and 7 to 9 represent high heat ranges. Most passenger car spark plugs have heat ranges between 5 and 7.