 For years, you have known Mack's Gas as a convenient, reliable, and affordable service center for your vehicle. And Mack and his crew were always on the lookout for ways to save you money while keeping your vehicle running smoothly. Right now at Mack's, you can get a $15 to $25 rebate on the purchase of a qualifying Napa battery, alternator, or starter. The good guys at Mack's have all the details.