A School of Mines professor has tracked his gas purchases since 1989 and prefers 87 octane.

If you've noticed the gap between the cost of regular and premium gas getting wider, you're not imagining things. Premium gas is getting disproportionately more expensive. Sadly, there isn't ...

702 out of 729 stations tested by the Department of Consumer and Worker Protection reportedly flunked at least one inspection ...

Fuel comes in different grades based on octane level at gas stations. Only some performance engines require Premium fuel for the best power output, fuel efficiency, and engine function. Are you ...

Gas stations give you the choice between regular and premium gasoline, but does it always mean that paying extra gives you actual premium gas?

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 ...

Many owners pump their cars with fuel but never stop to think about just what they’re pouring inside the tank. Gas has unique properties, like weight and density, which all play an essential part. In ...

New York inspectors uncovered a widespread problem at gas stations that raises serious questions about fuel quality, labeling accuracy, and consumer trust.

Have pings got you down? Has driving your car become a pain in the gas? Are your exhaust valves being "lead" astray? Well, as promised in last month's "Living With Unleaded," article, have we got some ...

RIYADH — As Saudi Arabia prepares to introduce Gasoline 98 to the local fuel market, Saudi Fuel has clarified what the high-octane product is, how it differs from existing gasoline grades, and which ...

Out of 729 gas stations checked by NYC inspectors between mid-2023 and mid-2025, a whopping 702 failed tests for their octane ...