May 03, 2013
>What's really a rip-off is mid-grade. Don't know why that's even offered.< Because there is an ASTM standard (ASTM D 4814) that says there are three grades of gasoline. There are vehicles designed to be run on midgrade. On the other hand, with the typical price difference around here for midgrade as being almost as expensive as premium, it might be a moot point.