United Unimar TBN 40 (MDCL) marine lubricant is formulated to lubricate low-speed crosshead cylinder diesel propulsion engines. United Unimar TBN 40 (MDCL) is suitable for use in engines burning residual heavy fuels with a sulfur content of 0.5% sulfur.

United Unimar TBN 40 (MDCL) contains a balanced additive composition used in conjunction with highly refined base oils to produce a product which imparts useful performance characteristics such as high load-carrying capacity, good detergency and dispersancy properties, excellent rust and corrosion protection for all engine parts and strong alkalinity reserve to neutralize acids formed during combustion.

United Unimar TBN 40 (MDCL) is compatible with all low-speed cylinder engine marine lubricants sold in the market.