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

Are you overpaying for premium gas or getting suboptimal performance out of your car because you're feeding it the wrong fuel? Gasoline is categorized by octane ratings at gas stations. Most drivers ...

How high of an octane does your car actually need to run well? Here's what to know about the consequences of using the wrong ...

Gas prices remain stubbornly high, with regular-grade fuel averaging $3.50 per gallon nationwide according to the AAA. That’s lofty enough, but for those who drive a car that requires premium-grade ...

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 ...

DENVER (KDVR) — Gas prices are fluctuating across the country, and a few states offer a “cheaper” octane option that isn’t found in most places. It has to do with the altitude. Most states have the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — Gas prices are fluctuating ...