High Mileage Fuel Treat ment 5.25 Oz.

High Mileage Fuel Treatment 5.25 oz. by Lucas Oil is a specialized fuel system additive engineered for vehicles with extended service histories and accumulated engine wear. As engines age, fuel injectors become restricted by deposits, fuel lines accumulate varnish, and combustion chambers develop carbon buildup—all of which reduce efficiency, increase emissions, and compromise performance. This targeted treatment is designed specifically to address the unique needs of high-mileage powerplants, restoring lost horsepower and improving fuel economy by dissolving stubborn fuel system deposits.

The formulation combines powerful detergents with lubricating additives to clean fuel injectors, carburetors, intake valves, and combustion chambers while simultaneously protecting fuel pumps and injection systems from wear. Lucas Oil's proprietary blend penetrates varnish and carbon deposits, breaking them down so they pass safely through the fuel system and burn away during normal engine operation. The 5.25 oz. bottle size is calibrated to treat a full tank of gasoline, making a single application convenient and cost-effective for a single fill-up treatment or preventive maintenance cycle.

High-mileage vehicles—particularly those exceeding 75,000 miles—benefit most from this additive, as they have experienced the greatest accumulation of internal fuel system deposits. The treatment is compatible with all gasoline engines, including carbureted and fuel-injected models, and works in both conventional and synthetic motor oils. Simply pour the entire 5.25 oz. bottle into the fuel tank before filling with gasoline; no additional equipment or special procedures are required. Drivers should expect noticeable improvements in cold-start response, idle quality, and overall engine smoothness within the first few hundred miles of operation.