Guest

I normally fill up with premium Chevron and occasionally Texaco but the other night I was really low and put some Exxon. Now my car hesitates at half throttle. Interestingly, the gas at the local Sam's Club (non-branded) is excellent and my mileage even improved with it. I thought that there isn't much of a difference between the major gas brands, what do you guys think? I've been using Chevron mainly for the Techron additive.