As everyone that uses truck fuels bays to fill their dual tank M2s you know the truck fuel has an additional, around 10% PUC tax. So in today's $375/gal commercial diesel that $.30 per gallon more than diesel at the same place in the non-commercial bays. Any way of avoiding that, short of filing one side, and circling around to fill the other side, assuming they have the overhead clearance. Not to mention its near impossible to maneuver around those tight spaces. Oh, and this isn't only for the TSD card. Pilot, Loves and all the truck fuel is taxed up that commercial charge. Since the RV is not commercial you'd think there is a way to avoid that. As it is using TSD discount you are not, or barely, getting the fuel back down to the regular rate. But that's not bad. I usually stop at TA if I can, which seems to always have the TSD discount.
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2021 Force 37TS (Detroit DD8)
2021 Jeep Grand Cherokee Trailhawk
2020 Isata-5 36DS (traded in)