Prolong Super Lubricants PSL16010 Fast Fuel - Fuel System Cleaner - 12-Ounce Bottle is formulated to thoroughly clean the entire fuel system including pumps and injector tips. It is engineered to add lubricity to the fuel. A fuel system, that is free of carbon build-up with a full-uninhibited spray pattern, is essential for optimum firing. If a fuel system is in optimum condition, it will offer smooth and efficient operation while providing the maximum fuel economy. Cleaning the fuel system is critical for correcting the effects of stop-and-go driving and fluctuating gasoline quality, which rob a vehicle of optimum performance and gas mileage. Prolong Fuel System Cleaner is compatible with all grades of gasoline and effective for at least 3,000-Miles.