In common rail injection systems, a pump stores fuel in a "common rail" at high pressure, regardless of engine RPM. This common rail supplies multiple fuel injectors with high-pressure fuel, which is atomized before being forced into the cylinders. Magnetic solenoid valves control the fuel supply more precisely, which results in optimized fuel injection time and quantity. This improves the efficiency of the combustion process, thus improving the overall efficiency of the engine. TOP 1 HD PLUS Synthetic Diesel Oil 10W-30 is uniquely formulated to handle the demands of common rail systems.
