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?

We spoke to an expert to answer questions like "does premium gas have ethanol?" so that you can fuel your car with peace of ...

Octane really is just a measure of how well fuel resists lighting itself under pressure. Some engines need to run on fuel that that offers more resistance than others, specifically the kind that run a ...