Understanding Octane: What do the Ratings Mean at the Gas Pump?

January 18, 2013
Your car is recommended for 87, 89, or 91 octane gas, better known as Regular, Mid-Grade, and Premium. Ever wonder what any of it means? There's a good chance you've pumped a Regular gas into your high-performance or foreign car that recommended a higher-grade fuel. And if you love your car, you've probably put Premium into your ride at some point, regardless of what's recommended. If you treat your car right, it'll return the favor. But does any of that apply to fuels? The first episode in our new series, "Cars, simplified" we tackle the octane topic, helping you figure out what fuel rating is best for your car. Over the coming weeks, we will unveil more helpful and informative videos on topics related to fluids and safety. Sit back and learn all you need to know about fuels here in the next minute and a half in the video below.

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2 comments
gbk999
gbk999

True, it is calculated differently. What you need to do is get yourself a turbo charged engine and mix about 30-50% ethanol (e85). Then you will worship  ethanol, it is the poor man's race gas. :)

AutomotiveChris
AutomotiveChris

FYi there's a difference between octane ratings in the U.S and Europe for instance. I know that over there a 98octane is equivalent to 92/93 over here. Different method of calculating, not sure why it's called octane then. But it's not like we have crappy gas in the U.S. The ethanol content is pretty high though out here.