GulfSea Cylcare DCA 5070H and GulfSea Cylcare DCA 5040H are superior quality (Marine Cylinder Lubricants )MCL designed for modern low speed crosshead diesel engines operating on residual fuels having sulphur content in excess of 1% .These oils are specially developed for diesel engines operating with higher pressures & temperatures and longer strokes .These oils are available in SAE 50 viscosity grades with a TBN Total Base Number( of 70 for DCA 5070H) and 40 for DCA 5040H. These oils possesses outstanding acid neutralizing capability and provides excellent engine cleanliness and durability.