Going green, or eco friendly with cars isn’t all that bad with your working with Cobb Tuning, who have modified this Nissan GT-R to run on E85 ethanol gas. Ethanol, or some would say corn oil, is a blend of 85% ethanol and 15% gasoline which was originally developed as a bio-fuel or flex fuel. However, E85 has become an alternative fuel choice for car tuning enthusiasts seeking large performance gains from a relatively inexpensive modification. This new ethanol E85 mix carries a 105 octane rating, and we all know what that means, more octane more power. Cobb Tuning has done just that with this new Nissan GT-R, to see how much extra power they could pull on the dyno.