What is the best way to clean a car's fuel system?

Answer by  Stephen75 (160)

Using a fuel additive such as "STP Fuel System Cleaner" once a month will prevent blockage from deposits in your fuel system.

Answer by  p944 (21)

Start by changing the fuel filter. Clean the fuel system at the engine by using cleaning additives poured into the fuel tank.

Answer by  Amber40 (24961)

Well if you just mean a system with a slightly dirty system then all you really need to do is run a few tanks of high quality octane fuels. The higher quality fuel will help to remove deposits left from lower quality gas. Fuel system cleaners can be added also to clean injectors and other components.

Answer by  worker8388 (994)

We can use solvents to clean,that can be added to gas tank. After solution to the tank,run the engine. The solvent will clean injectors,fuel lines,cylinders and fuel pump.