Keep the fuel injector and carburetor clean in your high-mileage vehicle with STP High Mileage Fuel Injector & Carburetor Cleaner Treatment. Formulated for vehicles with over 75,000 miles, this fuel injector cleaner features deposit-control additives to help remove deposits, which can help save gas. Friction modifier in this fuel injector treatment fights upper cylinder friction, maintaining engine efficiency. Just add this automotive lubricant and cleaner when you fill up your gas tank.