Originally Posted by
onthego15
AMEX Blue Cash Preferred gives 3% cash back for gas. However, if your local grocery stores sell gas cards, then you can get 6% cash back that way. My local grocery store has gas stations at many of its supermarkets. Not only do I buy its gas/gift cards and get 6% cash back, this chain offers an additional .03 off for using their gas/gift cards. So, basically I am getting 7% off (at least until AMEX starts limiting how much cash back you can get via groceries next year).
^ Same strategy I use, but my grocery store gives a $0.12 per gallon discount when I swipe the grocery store gift cards I buy with 6% cashback using Amex Blue Cash Preferred. Too bad they are going to start capping the 6% back.