Grabbed this off another forum. 40% Discount on Penzoil Marine Oil at Autozone. Sometimes it works, sometimes it doesn't. Was in the May issue of Sport Fishing Magazine. You can print the attached or take a pic on your phone and show it to them at the store. If they give you an issue you can email Autozone and Customer Service will call the store and tell them to honor the discount. Good for up to 3 gallons, sale ends the end of June.
