[Guess My Name]

I must say I have never been able to tell a real difference in mileage with gas. Heck I get from 14-18 depending on how I drive. With a range of 450 usable miles I doubt I could ever drive the same to see if one gas was better than another.

Now if it sucks I can tell by engine noise like if there is water in it. but with the pig I have if I stomp it once or twice a week I get crappy mileage.

As for refineries most of them around here make gas for many different stations. SO I wonder if they clean the trucks out ot not??? That would make a bunch of difference I would guess.