Schaeffer's 0170-012-1 Extreme Performance Full Synthetic Gear Lube 75W-140 Oil (Quart) CORE-450 ----Durability is always a good

----Durability is always a good thing

Formulated with a unique blend of organic compounds

3rd Generation Design Is Faster And More Capable Than Ever

the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms

we are able to command the ECM to use the full exhaust braking function of the ECM

Schaeffer's 0170-012-1 Extreme Performance Full Synthetic Gear Lube 75W-140 Oil (Quart) CORE-450 ----Durability is always a goodFor extreme protection in racing, performance and off road motorsports as well as everyday riding Transmissions: For Harley Davidson V Twin transmissions and aftermarket 5 speed and 6 speed separate transmission applications. Differentials: For use in any differential specifying SAE 75W 140. Not for use in Harley Davidson Sportster or combined engine transmission sumps.