Home Slickdeals 2-Pack STP High Mileage Fuel Injector & Carburetor Treatment, 5.25 fl oz... Slickdeals 2-Pack STP High Mileage Fuel Injector & Carburetor Treatment, 5.25 fl oz $3.18 Walmart | Amazon *Add On By ARCOM - 28 January 2019 165 0 SHARE Facebook Twitter Go to the deal page: 2-Pack STP High Mileage Fuel Injector & Carburetor Treatment, 5.25 fl oz $3.18 Walmart | Amazon *Add On