I get this question all the time. . ."Is there a coupon for me to use to save on gas?" Well there is one. Delta Sonic has 5¢ off a gallon of gas with this coupon. Now through Friday, save 5¢ per gallon on Delta Sonic gasoline. Limit one coupon per customer per visit. Not valid on previous purchases or with other gas discounts except with gas and wash rebate. 20 gallon maximum. Expires 6/10/11.