Originally Posted by SouthArk370Z

Use the highest octane you can find - as others have said, 93 (or greater) seems to be best, especially if you live in a warm area and/or drive hard. The engine will do fine on 91 in most DD situations but you may get some knocking when merging onto the freeway. The ECM will pull timing if it detects knock, so, unless you are running really low octane, you shouldn't do any serious damage ... but why take a chance when the difference in price is pennies?


As long as you stick with the major brands, the condition of the stations' tanks and other pumping equipment will have more to do with the quality of gas than the signs out front.