Castrol BioTac MP is an environmentally responsible, multipurpose EP grease based on a combination of Lithium Complex thickener technology, biodegradable base oil and an optimised performance additive system to impart corrosion protection, oxidation stability and load carrying capability. The inclusion of polymer technology enhances the adhesive properties of the grease, improving water resistance and thus reducing the potential for contamination of both the open deck and the marine environment. Castrol BioTac MP has been registered according to OSPAR (Oslo and Paris Convention) requirements and approved by the UK regulators for use offshore. It therefore meets the requirements for being an environmentally acceptable lubricant under the 2013 US Vessel General Permit.