Originally Posted by stretchedk7
I always thought since all fuel basically comes from the same place they are all the same
It is all the same coming out of the refinery. Each brand uses its own additive system, which can make a difference in the end. That additive system gets put in either when the fuel terminal is filling up the tanker truck that goes to the gas stations, or when the tanker fills the gas stations' tanks.
Personally, I used the cheap stuff when it was a dime to a quarter a gallon less and added RLI's Bio-Plus (or LubeControl's FP-Plus). That was much less expensive overall and as good or better than the best brand name stuff. There's not that kind of spread where I live now, so it's about a wash on price.