Maxtop Marine Cylinder Oil (DCA) is specially designed for Marine diesel engine cylinders. The oil must be able to deliver exceptional performance in extreme Marine environments, including high temperature, high load and high humidity conditions. Excellent lubrication protection and corrosion resistance, clean dispersion, effectively remove the surface deposits of the cylinder and piston, prevent carbon accumulation and blockage of the exhaust duct. Anti-wear: Form tough oil film under high pressure and high temperature environment, reduce friction and wear between piston ring and cylinder liner. Diffusivity: Flow quickly to the lubricated surface to ensure full coverage of the cylinder working area.