jkk912

Been looking at the 5star website trying to talk my self into pulling the trigger on a tuner and noticed the E85 performance tune. Now I've ran E85 in my truck before just to see how it ran and it did seem to have a bit better throttle response and a little more get up and go but not much. I was just wondering if anyone has ran the E85 tune on their truck or has seen any info on it? Id be interested to see how it stacks up against the 93 performance tune.

Tothemax

When I bought tunes I bought them from the lowest grade fuel in my area all the way up to 91. I tried the 85 then moved up to 87 then ended up at 91. I found 91 performance tow was the one I liked. It seemed to have a great balance of power and economy.

Koolponycar

E85 is around 100 octane in my area, and does make more power stock, and I would say tuned way more. BUT it does take way more of it stock or tuned to get that power. Other words you will be filling up way more often as the mpgs tank. I have mixed it with the other octanes like 60/40 and it really wakes the tune up. You will still suffer the mpg loss but not as bad.

Tothemax

I am glad we only have 10% Ethanol here. The 91 I get is ethanol free.

Willard5.0

I have an E85 tune. Used it twice, by the seat-of-pants its not any better than the 91 tune. I wouldn't be surprised if they just uploaded a 91 race tune and renamed it E85.
If E85 were ~$1/gallon cheaper I'd use it more regardless of tuning. But, its only 30 cents less than 91 so I dont bother.