Alexander, North Dakota | (701) 770-2275

Heavy-Duty Synthetic Diesel Oil 15W-40

Product code: ADPQT-EA

Delivers 4X more wear protection1
Minimizes oil consumption
Excels in extreme temperatures
Helps keep trucks and equipment operating at peak performance
Offers outstanding value
Helps maximize equipment life
Helps reduce maintenance costs and downtime


Availability and Price subject to AMSOIL stock, visit product's page for updated information.


  • 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
    • Allison TES439
  • 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.
  • AMSOIL Heavy-Duty Synthetic Diesel Oil is recommended for the drain intervals stated by the original equipment manufacturer (OEM). Refer to the owner’s manual for the specific oil change interval. Intervals may be extended beyond the OEMrecommended interval with oil analysis. Provides lasting protection for multiple events during competition. Use oil analysis to determine appropriate drain interval for competition use or when extending drain intervals beyond the OEM recommendation

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