Re: Gas Mileage redux - tale of the tape
If they add ethanol, they have to post it. I've found no problems (pinging nor missing) with ethanol, but I don't seem to get as good mileage.
I generally accelerate like the old man I am. Rarely do I take it over 4000 rpm. Most shifts around 2500. Why beat on a great car for no reason. Therefore I've never heard pinging - and the computer should compensate very well.
Yes - the book calls for premium 91 octane. I run 89 midrange in both Crossfires and my Audi turbo. Never regular. If I was going racing, I would use premium,