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Nationwide USA
San Diego, CA
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Heavy-Duty Synthetic Diesel Oil 5W-40

Formulated for Exceptional Diesel Engine Protection

Product Highlights 

AMSOIL Heavy-Duty Synthetic Diesel Oil is formulated for hardworking equipment. It is engineered to provide 4X better wear protection1, giving you the edge to keep trucks and equipment operating at peak performance. Heavy-Duty Synthetic Diesel Oil offers outstanding value and provides excellent protection for customers seeking an upgrade over conventional, synthetic-blend or competing synthetic diesel oils.
  • Heavy-Duty Synthetic Diesel Oil 5W-40

    Heavy-Duty Engine Protection

    Wear on rings and cylinder liners leads to increased oil consumption and loss of compression, resulting in reduced horsepower and fuel economy. Third-party testing shows AMSOIL Heavy-Duty Synthetic Diesel Oil delivers 4X more wear protection1 to help maximize equipment life and reduce maintenance costs and downtime.

    Viscosity Control

    Formulated with advanced synthetic base oils and detergent/dispersant additives, AMSOIL Heavy-Duty Synthetic Diesel Oil minimizes viscosity change while keeping soot particles suspended independently, helping prevent the formation of larger, wear-causing particles. Lower volatility also helps Heavy-Duty Synthetic Diesel Oil retain its viscosity after high-temperature service for added engine protection and increased fuel economy.

    Excels in Extreme Temperatures

    AMSOIL Heavy-Duty Synthetic Diesel Oil is formulated to deliver improved heat and oxidation resistance compared to conventional diesel oils. It provides clean engine operation and helps maintain power and fuel efficiency for superior engine performance. AMSOIL Heavy-Duty Synthetic Diesel Oil also flows dependably in cold temperatures for easier startup and improved engine protection.

    Minimizes Oil Consumption

    AMSOIL Heavy-Duty Synthetic Diesel Oil has a low rate of volatility (burn-off), reducing oil consumption during operation and passing less oil vapor into the combustion chamber. It provides up to 66 percent less oil consumption than required by the API CK-4 standard in the Caterpillar-1N oil consumption test.
  • Use in diesel engines and, where appropriate, gasoline engines requiring any of the following specifications:

    API CK-4, CJ-4, CI-4+, CF

    API CF-2

    Volvo VDS4.5, VDS4, VDS3

    Mack EOS-4.5, EO-O

    Renault RLD-4, RLD-3

    Cummins CES20086, CES20081

    Caterpillar ECF-2, ECF-3, ECF-1-a

    DDC 93K218, 93K215, 93K214

    DFS 93K222

    ACEA E9, E7

    MB 228.31

    MAN 3575

    MTU Type 2.1, II, I

    JASO DH-2

    Deutz DQC III-10LA

    Chrysler MS 10902

    Ford WSS-M2C171-F1

  • AMSOIL Heavy-Duty Synthetic Diesel Oil is compatible with other conventional and synthetic oils. Mixing AMSOIL diesel oil with other oils, however, will reduce its performance benefits.Aftermarket oil additives are not recommended for use with AMSOIL synthetic diesel oils.

CONTACT

 (800) 653-0323

 San Diego, CA, 92123
United States
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