Gear oil in new PR60/60 axles

T

The Cock Father

New member
I have always preferred to run synthetic oils and lubes, but it seems like I heard somewhere that Dynatrac recommends 85w140 in the Hardcore Combo. Well, that's not a popular synthetic offering (I only see Royal Purple). I can easily get 75w140 in synthetic though.

What's everyone running in their Dynatrac 60s?

Thanks!
 
If you're running an ARB locker, use standard fluid, Not synthetic. At least a couple members here have had the internal orings deteriorate after using synthetic fluid.
 
If you have ARB air lockers, DO NOT USE SYNTHETIC. Synthetic oil will break down the rubber diaphragm inside the locker, which will render it useless. Just use standard 80/90 weight oil unless you plan to tow alot, then use the 85/140 oil. Again, NON SYNTHETIC.
 
WJCO said:
If you're running an ARB locker, use standard fluid, Not synthetic. At least a couple members here have had the internal orings deteriorate after using synthetic fluid.
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highoctane said:
If you have ARB air lockers, DO NOT USE SYNTHETIC. Synthetic oil will break down the rubber diaphragm inside the locker, which will render it useless. Just use standard 80/90 weight oil unless you plan to tow alot, then use the 85/140 oil. Again, NON SYNTHETIC.
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I decided to go with the Eaton elockers, so should not be any issue with running synthetic. I won't be towing anything more than a small utility trailer, and that would only be a few times a year with minimum loads. I do have a pretty porky JKU though with skids, bumpers and a winch.
 
highoctane said:
If you have ARB air lockers, DO NOT USE SYNTHETIC. Synthetic oil will break down the rubber diaphragm inside the locker, which will render it useless. Just use standard 80/90 weight oil unless you plan to tow alot, then use the 85/140 oil. Again, NON SYNTHETIC.
Click to expand...

You're right. I checked my build sheet from Dynatrac and it lists Torco 85/140 petroleum based gear oil.


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