Unless your vehicle is rated for the E-85 (FFV), you may achieve less-than-stellar results. One concern that I would have is that E-85 is 85% ethyl alcohol, and your fuel system components, mainly the rubber ones, may not really be designed for this much alcohol. Also, you may have more trouble starting your engine cold, since the stuff does not seem nearly as volatile as gasoline. You can remedy this with a quick shot of starting fluid, however. If you do decide to try some out of desperation with the high prices of regular gas, try topping up just the last 25% of your tank with the stuff. If that goes well you could go 50% or better, depending how lucky you are feeling. I have heard of vehicles that are hard to start and won't hardly idle, but once you get going, the stuff runs great. I've run it up to half a tank (50% mix) in my 91 caprice with 305 V8 and TB injection. A little harder to start in the morning, but otherwise runs great. Good luck!