I would like to know if anyone is using these unmanned/self-service fueling stations and if you are, how much do you really save. My trucks all use gas and the mowers do too. So I am mostly interested in the savings of GAS compared to a normal gas station. Also, several gas stations here locally such as Sheetz and Kroger give a automatic 3 cents off on GAS. So is Quarles even cheaper than that? So the real question is. How much cheaper is quarles for each gallon of gas???