Is there a minimum purchase requirement to claim a gas offer? March 09, 2022 20:16 Updated Nope! You can purchase as much or as little gas as you want, up to a maximum of 50 gallons per offer. :-) Related articles Important information on claiming gas offers Can I use Checkout 51 gas offers with gas station rewards (like cards and coupons)? Can I upload a prepaid receipt to claim a gas offer? How do gas offers work? How many gallons is a gas offer good for?