Welcome to iRV2. This can get a little more complicated than it should be. There is the lowest price at the pump and then there is the lowest price to you, after all discounts are included.
You'll need to contact the J, go here
to understand if the J Master Card is automatically a RV Real Value card too.
The RV Real Value card is for those of us who do not have the J Master Card. We swipe the RV Value card first (it unlocks the pump, saving a trip into the cashier) and then follow the instructions on the screen.
What one needs to consider is the bottom line price. For me, I consider the following:
1. RV Real Value Card provides whatever discount I am entitled to based on purchases in the store.
2. My credit card provides a discount on fuel (5%). I make mention of this so you can consider if the J CC is a better deal than you can get from another CC company. The J card provides the cash price vs my CC that provides 5% off the total price. For me, my CC is a better deal than the J CC. Each person needs to determine what is best for them.
3. Lastly, the cash price is available, regardless of payment choice, at the RV pumps. The cash price is available at the truck pumps only by paying cash, check, or using the J CC.