AMSOIL first in synthetics
AUTHORIZED DEALER

SELECT SYNTHETICS
Richard Rioux
referral # 5256323

  (807) 853-0807
Signature Series Max-Duty Synthetic Diesel Oil 5W-40

Signature Series Max-Duty Synthetic Diesel Oil 5W-40

Boosted Protection For Extended Life
Rating
• Outstanding extreme-pressure protection
• Delivers 6X more wear protection
• Maintains proper viscosity (thickness)
• Minimizes oil consumption
• Maximizes fuel efficiency
• Excels in extreme temperatures

PACKAGE SIZES AND UNITS OF MEASURE
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Full list of Units of Measure and Package Sizes

Availability and Price subject to AMSOIL stock.
TECHNICAL SPECIFICATIONS

A Synthetic Diesel Motor Oil that’s Unlike Any Other

Molecule
Molecular 
Engineering 
for Modern Engines
Snowflake
Keeping it Cool 
by Reducing Friction 
and Lowering Temperatures
Environment
The Right 
Environmental Choice
Nano Technology
Finest 
Lubrication in the World  with Nano Technology
3 Bottles Signature Series Max-Duty Synthetic Diesel Oil 5W-40
MAXIMUM ENGINE PROTECTION

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.
  • Delivers 6X more wear protection, delivering extra protection so you can push your diesel with peace of mind
  • Provides long-lasting wear protection, keeping cylinder liners looking like new
  • Delivers up to 60 percent better turbo cleanliness
  • Withstands the extra demands you place on the turbo when pulling heavy loads for maximum horsepower
  • Provides up to 2X better rust protection

DELIVERS MORE WEAR PROTECTION

AMSOIL delivers powerful engine wear protection. Third-party testing shows Signature Series Max-Duty Synthetic Diesel Oil delivers 6X more protection against wear than required by Detroit Diesel’s standard.

KEEPS TURBOS CLEAN

AMSOIL Signature Series Max-Duty Synthetic Diesel Oil provides protection boosted to the max, delivering up to 60% better turbo cleanliness and withstanding the extra demands you place on the turbo when pulling heavy loads or updating the tune for maximum horsepower.

VISCOSITY CONTROL
  • Provides up to 76 percent less oil consumption
  • Resists oxidation and the thickening effects of soot contamination
  • Retains viscosity after high-temperature service for maximum engine protection and efficiency

EXCELS IN EXTREME TEMPERATURES
  • Stays fluid in sub-zero temperatures for easier starting, improved oil flow and reduced wear
  • Provides outstanding protection and performance in hot and cold temperature extremes
  • Resists thermal (heat) breakdown better than conventional and competing synthetic diesel oils
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