Fuel Rewards savings are not eternal. They do expire if you do not use them. Fuel Rewards savings expire on the last day of the second month after the savings were earned. For example, Fuel Rewards savings earned on July 14 will expire on September 31. If you need a credit card with rewards that do not expire, consider getting a regular credit card with rewards that are offered by major banks. A good example of regular credit card is Discover it card. You can earn with this card up to 5% each queter on rotating categories including gas stations.