Penrite Classic Medium 25W-70 (Mineral)

CLASSIC MEDIUM is a premium mineral, 25W-70, high zinc, low detergent engine oil designed specifically for petrol and diesel fuelled vehicles manufactured between 1945 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 40 or SAE 50 monograde oil was specified by the manufacturer. It controls oil consumption and maintains oil pressure in older engines.

NOTE - Replaces Enduro HD for Post 1950 Motorcycles

APPLICATION

CLASSIC MEDIUM is suitable for passenger cars, motorcycles, 4WD's, light & heavy duty commercial vehicles (trucks, buses & heavy equipment), tractors & industrial machines that originally specified a SAE 40 or SAE 50, monograde engine oil and were fitted with an engine oil filter. It 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 moderate ambient temperatures or as a summer grade oil if using CLASSIC LIGHT engine oil as a winter grade or if the engine is suffering from excessive oil consumption.

CLASSIC MEDIUM is an API SG/CD grade oil and contains HIGH ZINC levels for added anti-wear protection for older engines. It features a standard multigrade cold temperature SAE viscositygrade 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 MEDIUM 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 MEDIUM is recommended for use in pre-1980 motorcycle engines where SAE 40 & SAE 50 grade engine oils were specified.  It is also equally suitable for use in transmissions with wet clutch systems where engine & gearbox oils are combined. It has optimum clutch slip prevention in these systems. It is ideal for use in pre-Evolution (1984) engined Harley Davidson and larger capacity European motorcycles operating in all service conditions including competition and high ambient temperatures. It may also be used in older large capacity Japanese bikes and in classic British & European motorcycles including single cylinder 350 to 500cc low revving engines as well as 500cc and over parallel twins.

It can also be used in many other engines and gearboxes that require SAE 40 or SAE 50 grade engine oils. It can also be used in older worn engines or those burning excessive oil that originally specified SAE 30 or SAE 20W-50 grade engine oils.