Star Marine 500 SAE 20W-50

Marine Engine Oil

Star Marine 500 SAE 20W-50

Star Marine 500 is a multigrade, heavy-duty diesel engine oil specially designed to lubricate older high-speed diesel engines requiring API CF-4 or API CF performance lubricants.

  • Saves on fleet maintenance costs
    Metallic detergent and ashless dispersant additive system provides both high temperature deposit control in diesel engines and low temperature sludge control in gasoline engines. High oxidation stability protects against the formation of gums and varnish at elevated temperatures, and resists thickening, and oil line and filter plugging.
  • Longer engine life
    Proven metallo-organic anti-wear additive system protects against wear of critically loaded components under all operating conditions. Multigrade viscosity provides additional protection against wear at start-up and under high temperature operating conditions.
  • Maintains high power and performance
    Metallic detergent and ashless dispersant additive system maintains high power and performance by providing very good upper-ring-belt deposit control, particularly under the high temperatures encountered in turbocharged diesel engines.
  • Star Marine 500 is a multigrade, heavy-duty diesel engine oil specially designed to lubricate older high-speed diesel engines requiring API CF-4 or API CF performance lubricants.
  • High speed diesel engines in coastal and inland marine main powerplant service where SAE 20W-50 viscosity grade oils of API CF-4 or lower performance are required.
  • High speed diesel engines in coastal and inland marine auxiliary powerplant service where SAE 20W-50 viscosity grade oils of API CF-4 or lower performance are required.


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