An update:
Used the card at 3 Loves on my travels home from the Rio Grande Valley. The discounts were substantial, although not the same rate, I.e. discount per gallon varied. Nevertheless on 329.2 gals purchased @ these 3 Loves, I saved $216.27. This is after all charges and fees incurred and processed by the bank.
Very substantial....and on the upside, especially these days, I didn’t have to go inside as info is on app and emailed.
If I would have planned a bit better, ie. fueled in Sioux City, I could have used another Loves at Fargo, ND and I would have saved more - I had to use an outlet that didn’t accept the card. Winds and the great mileage the C13 gets would have meant rolling into Fargo on 10-15% of a tank which is too low for my comfort zone.