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Scottwax · 11-12-07, 05:13

My Mazda's owner's manual recommended 91 octane (only can get 87/89/93 here so I used 93 octane) and when I used regular, the throttle response was noticably less sharp and mileage dropped about 1 mpg city. Didn't ping though. Went back to premium after that.

11-12-07, 05:13	#13 (permalink)
Scottwax Now with twice the head Scottwax is online now Join Date: Oct 2001 Location: Arlington, TX Posts: 25,155	Re: Premium gas? Facts & Myths My Mazda's owner's manual recommended 91 octane (only can get 87/89/93 here so I used 93 octane) and when I used regular, the throttle response was noticably less sharp and mileage dropped about 1 mpg city. Didn't ping though. Went back to premium after that. __________________ Owner, Scott's Mobile Auto Detailing I test for Optimum, Clearkote and Meguiars