Yesterday I filled my 2009 Chevrolet Cobalt's tank with E85 gas. I saw it was the cheapest at the pump, so I used it (bad idea). I then used a little more today (like 1.5 gallons) until I just realized I shouldn't be doing that.
My car was acting funny this morning for about 5 minutes and then went back to normal. Example: I would try to accelerate, but it would remain in the lowest gear, and then after a bit all of a sudden it would upshift and jerk forward.
Should I be worried about any permanent damage? I don't know too much about cars. Thanks!