I have the TSD card and saved quite a bit using it at Love's.  Works great.  I happen to have a second checking account that I did not really use so I used this one for the card.  I just transfer funds as needed to pay for the fuel.  You can also get a $200 cash when using the card per day.  It is actually a debit card.  When at the pumps it will ask you if you want a cash advance. Jaime