https://mobiloil.com/en/promotion/mobil-promotions/up-to-15-dollars-off-with-mobil-1-and-mobil-super
walmart usuallys ells it for $26 for a 5 quart jug. Even though not on the approved vendors list I called and they'll take walmart reciepts for the rebate which means you could get 5 quarts of Mobil1 full synthetic for about $14, a steal!