30K fluid changes, looking for feedback

[klenger]

Here's what I'm thinking of doing for the 30K fluid changes:



Front Axle - Amsoil 80W90 AGL-QT



Rear Axle - Amsoil Series 2000 75W-140 TGO-QT



NV5600 Transmission - Quaker State Synchromesh Fluid MS-9224



Transfer Case - Amsoil ATF-QT



As far as I can tell, all these products meet the specifications from Dodge. I want to be conservative, and not substitute a product because it is sort of like the correct stuff (no flaming please, it's just how I feel). That's why I'm planning on the Quaker State MS-9224 for the NV5600. On the other hand, I don't requre that a product be "API Certified", so let's not go there either. I just want to make sure that I'm understanding the specs correctly.



BTW, the reason for 80W-90 in the front and 75W-140 in the rear is bacause I tow heavy. It would be nice to use the same in both, but it doesn't make sense for my application.



Truck is 2001. 5 2500 QC, 4WD, NV-5600, 4. 10, LSD, Mag-Hytec in rear towing 10,000 lb 5er.



Thanks for any and all feedback (even if I don't agree)

 

[DwayneKelch]

I agree with your thought process... have already amsoiled diffs and transfer case. I don't tow as heavy and live in a colder climate, therefore I don't use the heavier diff oils.



Still researching the best way to go with transmission (6 spd) as I want the best product possible in my transmission that meets specs and won't void warranty.



I've used Mobil 1 (diffs) in the past and found that Amsoil holds to metal better... remember just an observation through my narrow field of view.



Good luck!