Originally Posted by
Gasman
The highest we can get here is 91. And Regular is 85. If it was my car I'd just find a location that sells non-ethanol fuel and run whatever grade it is. Most likely its going to be a mid-grade level.
But do a full test comparing mileage and pep to the best of your ability. I'm betting per centavo or whatever you people up north call a cent its not going to get any better per gallon or qt or whatever than running the regular. Now the valves will be cleaner with the good stuff.