AMSOIL Signature Series 15W-40 100% Synthetic Max-Duty Diesel Oil Quart Bottle (DMEQT-EA)

• Outstanding extreme-pressure protection
• Delivers 6X more wear protection¹
• Maintains proper viscosity (thickness) 
• Minimizes oil consumption
• Maximizes fuel efficiency
• Excels in extreme temperatures 
• Confidently extend drain intervals

   

Keeps Turbos Clean

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

^JBased on specification standards of CAT C13 2nd Ring Top Land Carbon testing

Protects Against Rust

Provides up to 2X better rust protection.^K

Delivers More 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.^II

^IIBased on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation.
*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.

AMSOIL Fights Wear

AMSOIL delivers powerful engine protection. How good is it? In third-party testing compared to a leading brand, AMSOIL provided long-lasting wear protection, keeping cylinder liners looking like new.^DD