Quote Originally Posted by shygirl60630
Quote Originally Posted by ontarian_frog
Premium is going to get you less mpg than you could get with regular. Stick with what the manufacturer recommends.
I'll try regular on my next trip to compare. I was having problems with occasional misfires, so I began putting in premium to clear out my fuel tank and engine in case I had gotten some of that bad gas that's going around.
Water contamination is my guess. A bottle of methanol to a full tank usually fixes the problem.