Syntex Lubricants

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.

Read the Warranty

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