I know the manula says 87 is acceptable and 91 is recommended. What are you guys using for Fuel?
Use Sam's Club. 3 Miles from the house. Thirteen cents a gallon cheaper than nearby competition for Premium 93 Octane. Bigger difference to name brands like BP or Shell.If you buy your food at Safeway or Giant, you can get ten cents or more off each gallon. Sometimes I slide the seat all the way up and look under it on the floor, I can usually get another dollar or so rebate...
The Miata ran 87 although it like the 500 is suggested to be 91 or above, never an issue but since I bought the 500 new with intentions to drive it daily and not go too far with mods I've been sticking with the middle grade option available to me here in my area. I suppose that could change sometime down the road but no time soon.I have seen no difference in my car with 93 so it gets 87 and runs perfectly fine. We do not have "bad" gas around me either so that's never been a issue. Maybe in smaller town you would want to run 93.....87 and it drives great. Most cars do not need 93 unless they are a performance type of motor or have high compression.