mach2.25steve
New member
I have a Hyundai Elantra 2003 GT(not fast just is a GT, and I do not try to make it fast nor race it). It has about 117k miles on it now. I wanted to put 91 octane in it for about 2 weeks instead of 87octane to I don't know, clean it out a bit. Would it help the car or not really? Does that fuel injector cleaner work? Is that what I need or carburator cleaner? HELP