AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
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.
Highlights
- ✓Outstanding extreme-pressure protection
- ✓Delivers 6X more wear protection
- ✓Maintains proper viscosity (thickness)
- ✓Minimizes oil consumption
- ✓Maximizes fuel efficiency
- ✓Excels in extreme temperatures
- ✓Confidently extend drain intervals
Performance Benefits
Maximum Engine Protection
Delivers 6X more wear protection, keeping cylinder liners looking like new. Delivers up to 60% better turbo cleanliness. Withstands the extra demands placed on the turbo when pulling heavy loads or running a performance tune. Provides up to 2X better rust protection.
* Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation.
Viscosity Control
Resists oxidation and the thickening effects of soot contamination. Retains viscosity after high-temperature service for maximum engine protection and efficiency. Provides up to 76% less oil consumption than required by the API CK-4 standard.
* Based on the Caterpillar-1N oil consumption test vs. API CK-4 standard.
Excels in Extreme Temperatures
Provides outstanding protection and performance in hot and cold temperature extremes. Resists thermal breakdown better than conventional and competing synthetic diesel oils. Stays fluid in sub-zero temperatures for easier starting, improved oil flow, and reduced wear.
Available Package Sizes
Technical Resources
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Purchase directly from AMSOIL.com through your authorized dealer link.