Concept: The gas companies themselves would like to partake in the money that credit cards generate, so many have introduced a branded credit card or an exclusive gas station only card.
Will You Save Money?: Yes**
Comments: Gas cards from a specific station can be a good deal if you frequent that particular station often, but are not as flexible as the gas rewards credit card or even the average reward credit card. If you do frequent a particular brand, however, their store specific card is probably worth getting due to promotions they will occasionally have that will beat the gas reward credit cards. Having both will help to ensure that you get the best discounts available.
**As with norm...