quote:

Originally posted by Edmond:
Fascinating chart.

Is Marathon considered top tier gas?

IIRC, Chevron, ExxonMobil and BP are considered top tier gas.

To me gas is gas. It all meets the octane posted on the pump. And that's that . I really don't worry about this and that additional additives.

Re; the AT&T chart, Qwest is now CenturyLink.