Maintenance

2020PW · Apr 24, 2022

I need to do some maintenance but having issues finding information. Any help would be appreciated.

How much fluid do the front and rear diff hold on the PW, how much fluid do I need?

Is it still 75w85 GL-5? Owners manual says to use friction modifier?? Have helical rear end gears, is the modifier needed?

What transfer case fluid? Owners manual calls two different fluids.

2020 PW- Manual Transfer Case.

B12buddy · Apr 24, 2022

Some good diff information here:

Change your rear diff oil if you haven't yet and clean those lockers!

Today I got started doing some of my PMs on the wagon. Did engine oil first then started my first rear diff change(factory fill still in it). Everything is pretty straight forward on the work, take out fill plug, break loose all the diff cover bolts and let drain. While I was in there I had...

www.ramforum.com

thkbaron · Apr 25, 2022

from all the reading i've done on it, just fill the diffs up till they run out the hole. It's plus or minus 1/4 inch from the top. Once it starts running out, let it run till it stops because you'll more than likely overfill it a bit. Someone correct me if this is bad advice. I don't have an opinion on the transfer case.

BlackGold6.4 · Apr 25, 2022

your right on the money @thkbaron ... types of oil depend on where you live .. all the oils in my truck are full synthetic because of the long cold winters. I have no experience with conventional or semi synthetic oils but what ever your manual says for grade of oil and if it were me I'd go full synthetic anyways.

thkbaron · Apr 25, 2022

BlackGold6.4 said:
your right on the money @thkbaron ... types of oil depend on where you live .. all the oils in my truck are full synthetic because of the long cold winters. I have no experience with conventional or semi synthetic oils but what ever your manual says for grade of oil and if it were me I'd go full synthetic anyways.

Yeah I run Amsoil in all my stuff.

2020PW · Apr 26, 2022

Well I was able to pickup 75w85 GL-5 for $11 a quart. Some wanted $53, average was $17-24 a quart.

Contrary to what the owners manual says it doesn’t require limited slip additive.

BW 44-44 t-case fluid.

Grand Mesa · Apr 26, 2022

2020PW said:
Well I was able to pickup 75w85 GL-5 for $11 a quart. Some wanted $53, average was $17-24 a quart.

Contrary to what the owners manual says it doesn’t require limited slip additive.

BW 44-44 t-case fluid.

Shipping costs of 8 quarts was a deal breaker on the Mopar no matter how low it was per quart. With Summit Racing the 9 quarts of Mobil 1 Delvac shipped free at $100 total.

Maintenance

2020PW

Senior Member

B12buddy

Junior Member

Change your rear diff oil if you haven't yet and clean those lockers!

thkbaron

Senior Member

BlackGold6.4

Senior Member

thkbaron

Senior Member

2020PW

Senior Member

Grand Mesa

Senior Member

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