Non Detergent 40 Motor Oil is a general purpose motor oil that is formulated with select, high quality base oils. It is intended for use in non-critical gasoline and diesel engines operating under conditions which do not require a premium high detergent motor oil. Non Detergent Motor Oil is recommended for use in older, worn engines with high oil consumption where an API service classification SB/CD motor oil can be used. Non Detergent Motor Oils are available in 10W, 30W, 40W and 50W SAE viscosity grades.