87 octane gasoline, often called "regular" gas, is one of the most commonly used fuels in the United States. But what gives it that 87 rating is a word you've probably heard a time or two: Ethanol.

Add Yahoo as a preferred source to see more of our stories on Google. Person adding gasoline to a lawn mower - Ana-o/Getty Images Using premium gasoline with a higher octane rating can improve how ...

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 ...

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 ...

702 out of 729 stations tested by the Department of Consumer and Worker Protection reportedly flunked at least one inspection between 2023 and 2025.