The book says use a minimum of 94 octane fuel, but in parentheses it says (US regular). I'm guessing they're talking about a different rating as our regular is marked around 85-87 at the pump. I'm also thinking that back in '74, when there was lead in the fuel, regular was a higher octane than today.
I've been running the highest grade I can find, usually around 92 thinking I needed it, but now I'm starting to wonder. Is anyone using the cheapest regular? Any problems?
I've been running the highest grade I can find, usually around 92 thinking I needed it, but now I'm starting to wonder. Is anyone using the cheapest regular? Any problems?