Learn when premium fuel is actually required, what the different grades mean, and how to avoid paying too much.

Unless you’ve been living in a cave—or drive an electric car—you know that gas prices have shot up to unprecedented highs, due to multiple factors that have been further exacerbated by the Russian war ...

Engine knocking, or detonation, occurs when fuel in the cylinders ignites unevenly, causing metallic pinging sounds, reduced ...

Viewer-submitted questions for The Car Doctor: Q: My wife showed me an old article you wrote that stated you should not warm your vehicle in the winter. Why is this the case and will it do any harm to ...

Does your street-driven car ping now when it didn't use to? It may be suffering from octane creep caused by deposit buildup inside the combustion chambers. New engines on the dyno and regularly ...