[DENNIS G]

A lot depends on when you fill up. If you fill early in the morning you will most likely get more gas than if you fill at 3-4 in the afternoon. The tanks are supposed to be kept a certain temperature but most will heat up in the afternoon, therefore the gas is lighter and has expanded so you only get about 75-80% of a gallon even tho the pumps say you got a gallon. When it is cool or cold you get a solid gallon. I used to be an Over The Road Driver and when we had to fuel in the afternoon we never got the same mileage as when we fueled early in the mornings. When you only get 4-6 mile to the gallon, every little bit helps. I have used all the different brands of gas around here, I perfer Shell as I have a car that requires premium gas. Shell seems to give me the best mileage.