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

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 ...

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.

The 2026 Jeep Grand Cherokee’s new 2.0-liter four-cylinder engine may not appear to be a dramatic improvement at first glance ...

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 ...

At its core, gasoline, whether made for regular road use or the race track, is just a mix of hydrocarbons combusted in an engine. The primary differences lie in additives, octane levels, and how the ...