Penrite Pro 20 Mineral Engine Oil 20W-50 20 Litre PRO20020Pro 20 is a premium quality, SAE 20W-50, premium mineral engine oil developed for use in modern petrol, LPG and light duty diesel (non DPF) engines. It uses a combination of advanced additive technology and a low shear rate viscosity modifier, to ensure additional protection against wear, corrosion, oil oxidation, piston deposits and sludge under tough conditions. For use where API SM/CF or earlier specification is required, as well as for many other manufacturer applications.Pro 20 is designed for use in 4, 6 & 8+ cylinder multi-cam, naturally aspirated, supercharged & turbocharged engines. It is ideal for use in most older and large capacity engines where this viscosity is recommended by the manufacturer. Pro 20 is recommended where the manufacturer specifies a either SAE 20W-40 or 20W-50 viscosity engine oil. It can also be used where SAE 30 grade engine oil was originally recommended. It can also be used where ambient temperatures are very high or where oil consumption is becoming an issue where SAE 15W-40 was originally specified and in other older worn and larger capacity engines. It may be used where API SM/CF or earlier specifications are required.