Charlie, thanks to you I am on the search...but driving it as much as I do I hope I find it close! Someone in St. Augustine told me where I could find 104 from a pump. But he may have been on the beach too long.

Dave. care to elaborate? E-85 is a 15% ethanol right? Here in the sunshine state we have up to 10% ethanol on three different rankings (87, 90 & 93 if you believe thet pump text). In getting ready to put this question out to the world I read the bottle of the stuff that I am pouring in the tank and see that it is ethanol too!!!!

When you say you "run them on E-85, lots of octane and cheaper than permium" my simple mind gets confused. Do you still use additives or just E-85 and what the hey is E-85?

Not to mention WTH is cetane?

Back to the original question it sounds like I need to find the best (highest octane) gas that I can. Doesn't sound like others have found the same perfomance from additives.

But I love all of the opinions! I need help in running my engine right at a reasonable cost!

With as many engines that I know are out there, there has to be as many opinions about fuel!