It's illegal to use E15 in lawnmowers, motorcycles, boats, and heavy-duty vehicles. And you may want to think twice before ...

88 octane fuel has been making the rounds recently. But just how much does it matter compared to the usual 87 octane fuel ...

So, whether you drive a Mazda, Mercedes, or a McLaren, read on to find out whether Premium gas is really the premium option.

We have to separate the chemical "octane" from a fuel's "octane rating" since they can be two different things. Think about it this way. If you learned your shapes in kindergarten, you should easily ...

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 ...

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 ...

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 ...

Alaskans have wondered for years why they can't find gas higher than 90 octane. Oddly enough, we can't find one public acknowledgment of this limit by anyone in the oil industry or any government ...

A rising tide. The octane incentive has steadily climbed over the past decade, driven by: Tightening environmental ...