Gas for Less

I just read your gas savings page on-line and wanted to tell you how we save on gas.

I drive a diesel, but my wife's car is gas. We both purchase our fuel at a gas bar that is owned by a grocery chain. We get 3.5 cents off a liter of our fuel which is given to us in the form of a coupon that we use to purchase groceries. Presently our gas is selling at the equivalent of $4.16 a gallon ($1.04.9 a liter), so any amount of discount we can get is welcome.