# E85 Conversion **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [September 20, 2008, 11:41am UTC](https://forums.speedlife.net/t/e85-conversion/199716 "2008-09-20T11:41:03Z")\ **Posts on this page:** 1\ **Showing post:** 24
**Author:** ![gtlaw](https://avatars.discourse-cdn.com/v4/letter/g/35a633/32.png) [@gtlaw](https://forums.speedlife.net/u/gtlaw)\ **Post date:** [September 22, 2008, 10:06pm UTC](https://forums.speedlife.net/t/e85-conversion/199716/24 "2008-09-22T22:06:23Z")
> [@Getting out of Lease](https://forums.speedlife.net/t/getting-out-of-lease/37978/16): > > The concept of running some random E85-gasoline blend and getting a totally unknown mixture seems mildly retarded. E85 is not gasoline and while I acknowledge the potential for performance gains with a proper conversion, I would never run E85 through a motor that was only set up to burn gasoline. Aside from not really knowing the properties of the aforementioned 33% blend, **E85 as a classification denotes “up to” 85% ethanol by volume, so not all E85 has the same amount of ethanol.** good point but standard gasoline is already E10, but who knows if they actually put exactly 10%. I would expect manufacturers to account for that in their tunes, and if I were to tune for E85 I would try to be a little rich to be safe. BTW I ran straight E85 in my 84 volvo 242 turbo on 10lbs of boost without a problem. that was only to pass emissions which worked:bigok: --- _[View the full topic](https://forums.speedlife.net/t/e85-conversion/199716)._