Active cleansing technology Actively locks away harmful performance-robbing deposits. . Active clean up Helps to remove sludge left behind by inferior oils. 2� Effective wear protection 1 Helps to protect against wear and neutralize corrosive combustion acids. �High viscosity Helps to reduce leaks in older, high-mileage engines. � Resistance to oil degration Helps to maintain protection throughout the oil-drain interval. � Multi-fuel capability Can be used for gasoline, diesel and gas engines, and is also suitable for biodiesel and gasoline/ethanol blends. 1 Based on Sequence VA engine test carried out at an independent laboratory 2 Based on a severe sludge clean-up test.SHELL HELIX HX5 20W-50