Up to 30% * better protection against engine wear.

Shell Rimula R4 X provides high protection against engine wear in critical areas of the valve train, piston ring and cylinder liner, as evidenced by API and ACEA and specification engine testing of major engine manufacturers. This is accomplished by the addition of special anti-wear additives developed to form a protective layer on the parts of your engine where oil is needed most.

Up to 50% * more effective at keeping your engine clean.

Shell Rimula R4 X helps prevent oil thickening and harmful deposits forming in all areas of the engine. To do this, Shell Rimula R4 X provides a high level of engine cleanliness using specially selected soot dispersant additives at optimized levels.

Up to 50% * better protection against chemical corrosion.

Combustion gases form harmful acids in the piston ring grooves that come into contact with the oil and pass into the crankcase oil chambers. These acids are controlled using detergent additives that deactivate the acid and help prevent piston deposits and corrosion on metal surfaces. Shell Rimula R4 X provides excellent acid control, helping to prevent chemical corrosion of vital engine parts.