Just found this. AutoZone stores only, valid thru Jan 7, $10 off 5.1 qt jug or 5- 1 qt bottles. Includes motorcycle oils if that's your preference.
https://https://www.autozone.com/images/MEDIA_ProductCatalog/m610015_mobil1Coupon-v4.pdf?intcmp
https://https://www.autozone.com/images/MEDIA_ProductCatalog/m610015_mobil1Coupon-v4.pdf?intcmp