Originally Posted by 96bonniessei
e85 is made for flex fuel engines, i've heard it will do horrible things to your engine if it is not made for e85
EVERYONE.... PLEASE DO NOT PUT E85 IN YOUR BONNEVILLE.
There were no production Bonnevilles with flex fuel capability. For that matter, I do not believe there were ever any flex fuel L36s or L67s.... certainly no L27s. E85 is significantly different from regular unleaded gasoline, and major changes to the fuel delivery and PCM parameters would be necessary for a conventional motor to run on E85.
For all kinds of good information about E85, visit the National Ethanol Vehicle Coalition Website
EDIT: I should clarify a bit...
From what I know, "horrible" things may not necessarily happen to your motor if you use E85, but your car is guaranteed to run like crap, perhaps not even run at all. Do your research, and don't put E85 in your gas tank unless you drive a vehicle that is specifically labelled as "flex fuel" or designed for E85.