Gas stations have offered different types of gas for decades. There's a widespread belief that high octane gas can clean your engine, but is it true?

Higher octane fuel is necessary for engines that use higher compression. Low-octane fuels are less compressible and ignite ...

Gasoline is a mystery to most hot rodders. For the most part, we just fill up the tank and forget about the fuel. The most difficult question is whether to step up from 89 to 92 octane. As you might ...