Morris Race C40 is an engine oil manufactured from high quality first pressing castor oil. Synthetic base fluids are incorporated to achieve SAE 40 classifications, which in turn help to reduce or eliminate the traditional problems of deposits and lacquers, usually associated with these types of oil. All of the advantages of a castor-based product have been retained, including a naturally higher and tougher film strength, very high load carrying capacity, better wetting properties and reduced power loss due to friction.
C40 is recommended for four stroke grass-track and classic machines where castor-based products are preferred. These grades may also be suitable for premix use in two stroke applications with both petrol and methanol fuels.
With the possibility of excess moisture being present when running on methanol, all Morris Race C grades contain corrosion inhibitors to help combat potential problems.