Read a good spark plug lately? We hope so, for your engine's sake. But spark plug reading—the traditional way to check your fuel mixture and monitor other vital conditions in the combustion chamber ...

Q. What is the purpose for the heat range of a spark plug? This question came up with me and my neighbor. J.K., Pittsburgh A. No need for a heated debate. First, “heat range” has nothing to do with ...

Weichai Power has developed a spark plug heat rating measurement method and system using spark discharge current for precise evaluation. By controlling discharge current and measuring temperature ...