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.
MAXIMUM ENGINE PROTECTION
Delivers 6X more wear protection,1 delivering extra protection so you can push your diesel with peace of mind
Provides long-lasting wear protection, keeping cylinder liners looking like new2
Delivers up to 60 percent better turbo cleanliness3
Withstands the extra demands you place on the turbo when pulling heavy loads or updating the tune for maximum horsepower
Provides up to 2X better rust protection4
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
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
