Knock, knock. No, we’ll spare you the bad joke, because we are discussing those annoying engine knocks. Some people call it knock, some call it ping, others call it clatter. No matter what you call it ...

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 ...

TENDENCY to detonate is probably the most important factor in determining the usefulness of fuels for internal-combustion engines. Although it is possible, by various means, to measure more or less ...