CLASSIC LIGHT is a premium mineral, SAE 20W-60, high zinc, low detergent engine oil designed specifically for petrol and diesel fueled vehicles manufactured between 1950 and 1989. It features a double layer of engine wear protection with high zinc and increased operating temperature viscosity over older style multigrade oils or where SAE 30 monograde oil was specified by the manufacturer. It controls oil consumption and maintains oil pressure in older engines. APPLICATION CLASSIC LIGHT is suitable for passenger cars, motorcycles, 4WD's, light & heavy duty commercial vehicles (trucks, buses & heavy equipment), tractors & industrial machines that originally specified a multigrade 20W-40, 20W-50 or monograde SAE 30 engine oil and were fitted with an engine oil filter. CLASSIC LIGHT is a multi-grade oil that contains a special additive pack that suit vehicles of the era and is compatible with grades that were originally specified. This oil exceeds the specification requirements of original oils required during this period hence offering a greater level of engine protection compared to original oils. It is ideal in vehicles operating in cooler ambient temperatures and is suitable as an engine/transmission oil in vehicles manufactured by Austin, Morris, BMC & Leyland. It is also suitable for use in motorcycles that require this viscosity and grade of oil. CLASSIC LIGHT is an API SG/CD grade oil and contains HIGH ZINC levels for added anti-wear protection for older engines. CLASSIC LIGHT features a standard multigrade cold temperature SAE viscosity grade with an increased operating temperature range that provides and added layer of protection for the engine especially under increased load and temperature conditions. Multigrade oils provide better start up protection and better protection at operating temperature than monograde oils and they do not need to be changed in winter and summer as they used to do. CLASSIC LIGHT contains a "Tacky Additive" so that when the vehicles are laid up, the engine oil doesn't run off the internal surfaces. This combined with an increased level of rust inhibitor, provides protection against corrosion and deterioration when the engine is not used or in storage. CLASSIC LIGHT is suitable for use in motor cycles fitted with a wet clutch. NOTE: when changing oil, Penrite recommend using Penrite Engine Flush, a fast acting, solvent free, engine cleaning formulation that removes engine deposits, sludge and contaminants with the oil service drain. It contains added zinc for engine wear protection and its fast acting formulation works in 10 minutes.