What is the highest octane you can get in gas?

Answer Premium gasoline is required to have an octane rating greater than 90 and may be as high as 94. Fuel sold as E85 (a mix of 85% ethanol and 15% petroleum) has the highest octane rating (about 105), ... Read More »

Top Q&A For: What is the highest octane you can get in gas

What Is E85 Octane Fuel?

E85 octane is a fuel blend of 85 percent ethanol and 15 percent gasoline, according to the Renewable Fuels Association. Ethanol is produced from grain, such as corn, in the United States. It has a ... Read More »

Is higher octane gas better for your car?

On One Hand: Not Better in Most CasesIn most cases, high-octane gasoline is not better for your car. Most cars are made to burn regular gasoline, and that is what is recommended in the owner's manu... Read More »

How to Use an Octane Additive for a Gas Tank?

Fuel additives can be useful for people who drive turbocharged or high-compression engine cars, and live in areas that don't offer anything higher than 89 octane fuel. Although octane boosters and... Read More »

A Homemade Octane Booster?

The octane number or rating of fuel describes its resistance to ignition in a combustion engine as a percentage of the resistance to ignition of iso-octane, a type of fuel used as a benchmark. Fuel... Read More »