· Super Moderator
As I posted previously about my faulty tune, I just filled my first tank after detuning. I was running Shell 93 and to my surprise, I netted @ 38 MPG with @95% city driving. When I had the tune installed on my car, I was lucky to get low 30s. AS I said it was a problem with my tune. If you tune your engine your MPG should go up, mine did not, I need to talk to Vince/Jerry about this. Just have not had a chance to. Anyway I wanted to report the good news about my MPG and I am still pulling good power out of my Eco with the 93 octane.