Lower Gas Prices

[Maui Nick]

Originally Posted by 31_bandits

how about i add 3) my impression is that the engine runs smoother and my 5 best mileage tanks have been on premium, and 2 lowest mileage on regular, with alot of mixed mileage in the space between, generally implying that mileage is better on premium. Avg to date is about 5% better, avg cost for premium is about 3-4% more.

What kind of driving were you doing when you got those best and worst mileage numbers for one tank? Average it out over a couple of months and you'll be sorely disappointed in yourself for wasting that money.