All depends on the location. Many places have auto diesel up front but you cannot get in there due to size of the lot. We tow and cannot back up far, so that makes for some interesting tactics sometimes. Try to scope the whole scene out before you commit to entry - looking for pump access certainly, but getting out is an important as getting in.:B
Quik Trip here in the SE is building some great fuel stops that you can use with a regular card. I believe their base in Texas so you may be familiar with them. Flying J used to be my favorite fuel stop but they were bought out by Pilot and Pilot is letting the FJ locations fall into disrepair. :M