Association of Independent Gas Station Owners in Ohio, Kentucky, Indiana, West Virginia, Pennsylvania & Michigan.
Ohio Terminals National Ethanol Plants igsoa Terminal Project Buying Bulk Fuel
Mazut M100,D2,JP54,LPG,LNG

Removing Restrictions
on  Crude Oil Exports
from USA


National Terminals E85 Stations in Ohio Daily Rack Prices
Business with or without Real Estate for Sale by Owner

Free Listings



How octane effects on milage?

Octane rating does not relate to the energy content of the fuel. It is only a measure of the fuelís tendency to burn in a controlled manner, rather than exploding in an uncontrolled manner. You will get the same mileage and horsepower at any level. Octane is the gas companies biggest scam ever and you only need the minium required by your engine so that there is no knocking. If you donít believe me look it up.

Gas Guy,
That might be true where you live. If all the grades of gas has ethanol, octane rating doesnít matter.

Ethanol contains approximately 34% less energy per unit then gasoline. At the 10% blend we are forced to buy now, on older vehicles mileage will drop about 3 percent. Newer Flex Fuel Vehicles take care of this, but for 90% of the cars on the road that arenít Flex Fuel, this is degrading on mileage.

For now, running high octane non ethanol gas (where you can find it) seems to boost mileage about 3%. Not related to the octane, but the 0% ethanol level.


-Various local forums

Questions or problems regarding this web site should be directed to [].
Copyright © 2012 [Ohio Petroleum Organization LLC]. All rights reserved.
Last modified: 06/24/21.