All the Arco stations around here are cash for less. Most have diesel at a higher price than the other stations. Arco reg is usually cheaper though. Most of the time I buy my diesel at two stations where I live. They're cheaper and do a high volume. When traveling with the 5'er I just look for the cheapest, easiest egress stations. I don't mind paying .5-.10 more a gal if it's an easy in/out deal. I don't run the tank down to empty towing so I usually put 25-30 gals in. At that rate .5-.10 is only .75-$1.50 more for a tank. I'm certainly not going to specifically look for a cheaper station that I have to usually get out and walk into, stand there waiting for others to do there business while I wait to pay for my diesel and save a buck.