Problem
When I spoke to the dealer, the guy there told me to switch to the middle grade of fuel (89 here in Indiana), and that there have been similar problems since they reformulated the high octane gas (91), which I have been using exclusively.
Does this sound right? (I have no idea what the change has been.) Are there going to be any problems in the long run using 89? Are there any brands that aren't reformulated?
Sorry if this topic has been discussed ad nauseum--no luck in the archives, and thanks in advance!!!



