Whats the deal here???? You pay more for high octane gas, so why am I paying more for 40 octane than 93? Got a bio place down the road and its only a penny cheaper. 3 years ago it cost me 50 bucks for a tank, now 125oooh:. That lasts only 2 days. i know thats petty to all you owner operaters, but for a small construction guy, well, I'm working for fuel.