For every dollar you (or wife) spends at Frys (part of the Kroger chain) using the Frys card, you get 1 point. 100 points will get you $0. 10 / gallon discount on 10 gallons of fuel (gas or diesel). For me, it takes about 300 points to get the discount on a tank of fuel. It's nothting to get too excited about. When it's all done, I've saved $3 on $120 worth of fuel, but $3 is $3. Fry's also has the cheapest diesel anywhere around here, and since the tanks were installed less than 2 years ago, I have confidence that the fuel is good, which comes from Flying J BTW.