Boy, you read some of these guides and wonder where they get their "facts" from. Myth #1. Fill up on a cool day so you get more gas. Fact: the coefficient of expansion of gasoline is 0.00060 per degree...
I buy the cheapest priced gas possible, yet I don't waste gas driving around looking for the cheapest prices in town, How? I use the internet whenever possible. Here's a list of sites that monitor gas prices...
My hats off to Sunoco, Giant, Sinclair, and Flying J. These are American owned companies that produce their own fuels. Boos to Motiva, WRB, Koch, Lion. They get more than half of their crude from the Middle...