Home Slickdeals K&N Motor Oil: 5W-20 Full Synthetic Engine Oil: Premium Protection, High Mileage,... Slickdeals K&N Motor Oil: 5W-20 Full Synthetic Engine Oil: Premium Protection, High Mileage, 4 Quarts – $15 By ARCOM - 18 September 2022 43 0 SHARE Facebook Twitter Go to the deal page: K&N Motor Oil: 5W-20 Full Synthetic Engine Oil: Premium Protection, High Mileage, 4 Quarts – $15