NEW Eco Logic Advanced Oil System Cleaner removes contaminants from internal engine components by cleaning lubricated components and engine compression rings. This can dramatically reduce engine carbon emissions. After treatment, oil flow and engine compression will improve and assist in restoring renewed engine performance. Features Fast and easy single application. Proven cleaning and safe lubrication technology. Suitable for petrol and diesel engines. No harsh cleaning solvents. Facts Sludge and residue restrict oil flow. Just changing oil alone will not remove all contaminants. After Service Benefits Reduces harmful exhaust emissions. Removal of sludge, dirt and varnish. Prevents contamination of new oil.