Shell Helix Ultra motor oil delivers Shells ultimate cleansing power, helping engines achieve maximum performance and protection, while maintaining fuel economy. The oil in a clean engine can flow quickly to where it is needed, ensuring the engine is better protected. The outstanding cleansing ability and shear and oxidation stability of Shell Helix Ultra means that it goes on delivering its benefits throughout the oil-change interval. Shell Helix Ultra is specifically formulated for new vehicles, fuel-injection petrol engines that are fitted with catalytic converters and blow-by-gas recirculation. It also meets many vehicle manufacturers extended service specifications and has formulations for different fuels, engines and environmental conditions.