It's a "No Brainer" if you travel or have a listed truck stop near your home. I saved .50 cent per gallon on my first time use. I read this morning that they have over 11.7K RV cards in use as of today.What % of list price do you pay using EFS?
Facebook page, "TSD RV Fuel Program"
People list similar results all over the country.
There is also a phone app called "EFS Card" that works with the program. It will show you where the best discounts are based on your location and route.
If anyone here is considering getting the card, send me a PM before you do. They offer a referral discount.