Quote Originally Posted by gtpsleeper View Post
I notice a lot of that is for Iowa though so would it be valid in other parts of the country?

Plus, another thing I have yet to get any conclusive evidence of, is what gas the ethanol is blended with. At first, I figured if you just take the AKI rating of ethanol, figure out the octane of the blended fuel, find the actual blend of the e85 and do the math to figure it out. But NOWHERE can I find what fuel they blend the ethanol with. so they could be very easily blending it with like an 80 octane. Or, it could be the 87... So there is just too many variables that are just unknown to have a 100% conclusive answer. The reason I support the ~96 octane over the higher one is that it there seems to be more scientific baking for it (and my roomate did a project on it for chemistry and I used a bunch of his research that I cant find on the net honestly).

So I guess its really just a mystery lol :/
84.5 octane is common.