You earn 10¢/gal for every $50 you spend at participating restaurants and bars, and you have 18 months to reach that $50 worth of spending.
Your fuel savings earned through Fuel Rewards Dining should appear in your account in 5-10 days, but in rare circumstances it may take longer after the transaction occurs.
Once you reach $50 in spending, you will have 3 months to redeem your savings.