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

It may be tempting to opt for the lowest-priced option, but ensure it meets the engine requirements. Read more at straitstimes.com. Read more at straitstimes.com.

If you've ever fueled up in Colorado, you might have noticed something unusual about the gas octane ratings at the pump -- specifically, the availability of 85-octane gasoline. This lower octane fuel ...

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 ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A large variety of fuel options and prices are available - Bill Ragan/Shutterstock Premium gasoline is for cars. More specifically ...

You have a choice when you pull up to the pump. Most gas stations have three choices for fuel for your vehicle, based mostly on octane ratings. Which one is the best for your vehicle? A lot of that ...

With all the different engine and combustion theories being tested at the Engine Masters Challenge, it made us wonder about the fuel these powerplants were gulping down. For the 2015 event, we had ...

Here's some practical, hands-on advice to help you save money when buying gas. Hint: Keep your car in shape and drive ...

Chevron on Thursday said the Isomax unit at its 269,000 b/d El Segundo, Calif., refinery has resumed operations after a pipe failure led to a five-month shutdown.

Fuel companies in Singapore have been raising prices of petrol and diesel over the course of two weeks since Iran was ...