MARINE-GUARD 4015 TP by Rock Oil

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MARINE-GUARD 4015 TP is a high performance, medium alkalinity engine oils for medium and high-speed trunk piston marine diesel engines. They are manufactured with high-quality base oils and market-leading additives.

These lubricants are suitable for use in trunk piston marine diesel engines using gas oil or marine diesel oil with a maximum sulphur level of 1.5%. Always follow OEM recommendations for TBN and viscosity grade based on actual fuel sulphur content.

Product Code: 03720


  • Wear protection- Protects against corrosive combustion products and minimises wear on all moving engine components.
  • Detergency/Dispersancy- Keep crankcases, and oil control rings clean.
  • Reduces deposit formation, particularly in the ring belt area, and reduces oil filter blockages.
  • Oxidation Stability- Outstanding protections against thermal stresses, protects engine parts from corrosion and reduces piston under crown deposits.
  • Rust Prevention- protects against corrosion of engine parts when the engine is not in operation.


Performance Specifications, Approvals & Recommendations

  • API CF


Please Note: The product images shown are for illustration purposes only.  They may not be an exact representation of the product.

Pack Sizes

Depending on the range, Rock Oil products are available in multiple sizes.  This includes 400ml aerosols and 1L / 4L / 5L / 20L / 210L / bulk containers.

Please get in touch for prices and advice.


Call: 01254 433391


Additional information


20 Litres, 205 Litres, 1000 Litres


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