Millers Oils CSS (Competition Semi Synthetic) Nanodrive is an engine oil developed for Motorsport use. The use of Nanodrive technology hugely reduces friction, compared with traditional semi-synthetic oils, resulting in improved engine power, reduced engine wear and improved engine efficiency. The 10W40 viscosity is suitable for road or track use in car and motorcycle engines.Reduces friction by up to 26% compared to a standard engine oilSuitable for modern high performance enginesExcellent thermal stability and oxidation resistance.Semi-synthetic base fluid provides maximum engine protection with minimum power lossAll the engine oils in the CSS range are formulated with a high performance ester formulation combined with latest NanoDrive additive technology for maximum performance at an affordable price.'What is NanoDrive Technology. 'NanoDrive technology uses spherical nanoparticle structures within the oil. Configured in a similar sort of composition to an onion, with 'skins', the Na