Fuel system deposits are the #1 cause of drivability issues in all types of modern gasoline powered vehicles. The deposits that form in fuel injectors, on intake valves and in the combustion chambers contribute to poor starting, poor idle, hesitation when accelerating, reduced fuel economy and increased exhaust emissions. These deposits gradually build-up over time and slowly reduce the efficiency of the vehicles fuel system. The rate of buildup of these deposits is affected by fuel quality, amount of fuel system detergent in the fuel, driving conditions and other factors. The most effective way to restore the power, performance and fuel economy of any gasoline powered vehicle is to regularly use a premium fuel system detergent like Ultra Concentrated Complete Fuel System Cleaner.