This spark plug tester features an innovative dual-socket design, allowing you to test two spark plugs simultaneously. By taking this approach, you can effectively compare the spark intensity of two ...

We earn commissions from purchases you make using links in our articles. Learn more. You don't have to pay a mechanic to change your spark plugs. Giving your engine fresh spark plugs should be part of ...

Fixing vehicles by throwing parts at them until they run right isn't a very good feeling. It's better to have an idea of what the problem is, if possible, before running to the parts store. Diagnostic ...