[MilesToGo]

There are about a half dozen different gas stations near me, BP, Shell, and off brands. I go to the one that has the cheapest price. Thus far i've noticed absolutely no difference in the performance of my truck between brands. BTW, i run 87 octane all the time. Contrary to what some people believe, higher octane does not equal better mileage. Some vehicles require higher octane to prevent pinging (detonation). Octane has nothing to do with mileage. If you are getting better mileage with higher octane then you are either driving the vehicle differently or there is some other variable that is off.