What CA Traveler is saying well at least the last part.
Depending on the price of the fuel your getting.
There are still some Brand name stations that its the same price for instance we have a local Chevron that the cash Chevron CC price is the same as using another CC
So it would be cheaper to use your CC IF you have one that does cash back.
I know a couple years ago traveling back East when gas prices were 3.89 - 4.39
The difference between the station that Cash/their Brand CC was usually .06-.08 cheaper than if I used my bank CC well at even using my bank CC card with the 3% cash back I was getting .11 to .13 a gallon cost hence doing better than the GS/ Flying J high price fuel savings card...
Now that gas prices are down to 2.45 I only save .07 using my Bank CC..
Coarse the MH is in hibernation till spring you know for when fuel prices will go back up ;( ....
I need to look into CC's that get 5% cash back !!!