Originally Posted by LTimeL

Not really, free fuel is the reason I participate. There is a nice MC promo running till end of 2017 for 0.15 off per gallon per 100 of grocery spend. Since you signed up already, take a look at linking a MC or two - especially ones that earn decent rewards. If, for example, you spend 500 using a 2% reward earning MC you'd earn 10.00 in rewards plus 0.75 off per gallon. Limited to 20g purchase at a time using rewards, so the gas discount is worth 15.00 max. I've earned about 8.00/g off so far. In my area if gas is 2.50/g I get 2.40/g off the balance earned but have to pay road tax of 0.099/g. In another country (same state) I paid 0.019/g so don't know if that was a mis-configured pump or there was some tax diff.