Millers Classic Pistoneeze 20w50 (previously called Millers Classic 20W50) is a moderate detergent, premium, mineral multigrade and is typical of the viscosity of oil specified for the  majority of engines from 1960 to 1980.  It is specifically engineered for use in older engines, providing they are clean inside, which incorporate modern filtration systems.  Being a multigrade, there is no necessity to change the oil between winter and summer.  This product can also be used where SAE 20, 30, 40 grades are recommended.

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For details on other engine oils, please see our full range of Classic Engine Oils.