Groupon member must register as a Fuel Rewards member within 30 days from claiming the offer. Amount paid never expires. Limit 1 per person. Code will not function for existing Fuel Rewards members New Members Only. Fuel Rewards savings limited to 20 gallons of fuel per purchase. Fuel Rewards savings issued through this offer will expire on the last day of the month immediately following the month in which they are posted to the Fuel Rewards member’s account. Void where prohibited by law. Offer only available in US. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.