The oil filter Is star tax-controlled fuel tankers in the oil and gas separator inlet and outlet, respectively set up screen (cloth) and conical screen, Censtar quick coupling set the oil gun mesh inside the oil gun, make the oil filter, can effectively improve the service life of the mechanical parts of the tanker and protection of automobile engine. Protection and safety performance is good (1) is the star tax-controlled fuel hydraulic couplings tankers advanced sealing oil gun, when the hydraulic quick coupling oil fill the container, can automatically shut down a gun inside the valve and cut off the oil, to avoid oil spills, ensure the gas field of clean and safe.