Matt Collins

SIGNATURE SERIES MAX-DUTY SYNTHETIC DIESEL OIL 15W-40

Developed to protect the horsepower diesel enthusiasts crave and extend the life of hard-working commercial equipment in the most severe conditions. Signature Series synthetic technology delivers max-duty protection in on- and off-road applications.

Maximizes fuel efficiency
Excels in extreme temperatures
Minimizes oil consumption

See the Product Data Bulletin for full details.

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Available In:

Quart Bottle
Gallon Jug
2.5 Gallon Jug
55 Gallon Drum
275 Gallon Tote

Maximum-duty Protection for your Hardest Working Diesel Engines

Maximum Protection

Biodegradable Synthetic Hydraulic Oil provides excellent wear protection for hydraulic pumps and motors. It maximizes component life to help reduce time and money spent on maintenance.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 Signature Series Max-Duty delivers 6X more wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222, delivering extra protection so you can push your diesel with peace of mind.
Viscosity Control

Using top-tier synthetic base oils, Signature Series Max-Duty is naturally resistantto oxidation and the thickening effects of soot contamination. That, along withboosted detergent/dispersant additives, keeps soot particles suspendedindependently, helping prevent the formation of larger, wear-causing particles.Viscosity increase is minimized and soot-related wear is controlled. Lower volatilityalso helps Signature Series Max-Duty Diesel Oil retain its viscosity after hightemperature service for maximum engine protection and efficiency.
Excels in Extreme Temperatures

Signature Series Max-Duty Synthetic Diesel Oil resists thermal (heat) breakdown better than conventional and competing synthetic diesel oils. Unlike conventional oils, Signature Series contains no wax, staying fluid in sub-zero temperatures for easier starting, improved oil flow and reduced wear. Signature Series 0W-40 (DZF) has a broad viscosity range that offers 4X better cold-cranking ability than a 15W40 oil in the ASTM D5293 cold-cranking viscosity test, making it excellent for use in both hot-operating engines and cold-weather starting extremes.