I get 15 in town and 25-26 on the highway at 70-75 MPH. Even though I know it is not supposed to make any difference, I swear I get better mileage on mid-grade versus regular; 2-3 miles per gallon. Was getting 23 MPH on regular. Guy in my Mustang club with an 05 GT says same thing - better mileage on mid-grade. Again, I know it is not supposed to make any difference, BUT
When running on regular or mid-grade I get a bit of a throttle delay; however, on regular, once the engine responds it bogs a bit before taking off. On mid-grade I get the delay, but the engine has no hesitiation after that. Yes, I know it should not matter. Discovered this all by accident on a trip when I stopped for gas and the station was out of regular.
Or maybe it is just all in my head...
When running on regular or mid-grade I get a bit of a throttle delay; however, on regular, once the engine responds it bogs a bit before taking off. On mid-grade I get the delay, but the engine has no hesitiation after that. Yes, I know it should not matter. Discovered this all by accident on a trip when I stopped for gas and the station was out of regular.
Or maybe it is just all in my head...
