Is Fuel Injector Cleaning Necessary?

[FinleyDella]

Fuel injector cleaning is necessary. Prolonged neglect of injector cleaning can lead to increasingly severe carbon buildup inside the engine cylinders, accelerated wear of cylinder liners and piston rings, unstable idle speed, increased fuel consumption, poor acceleration, difficult starting, and other issues. In severe cases, it may completely clog the fuel injectors and damage the engine. The recommended frequency for cleaning the fuel system is every 30,000 to 40,000 kilometers. Modern automotive fuel injectors are mostly solenoid valves. When the electromagnetic coil is energized, it creates suction that lifts the needle valve, opening the injection port. Fuel is then sprayed at high speed through the annular gap between the needle valve's tip and the injection port, forming a fine mist that promotes complete combustion. Previously, diesel engines used mechanically controlled fuel injectors, where mechanical diesel nozzles operated by controlling precision-matched components.