Recent Topics
Quaker state 5w20 $1.50
by Villalobos - 01/20/20 02:00 PM
Heavy Calibers
by rrretiree7 - 01/20/20 01:09 PM
Filter Efficiency Specs
by Talent_Keyhole - 01/20/20 01:05 PM
Larger filter for 19 Ram
by Schwifty - 01/20/20 12:52 PM
Duralast Max Ceramic Pads Photos!
by NASTI - 01/20/20 11:23 AM
expensive rotors
by Donald - 01/20/20 11:19 AM
3 Fram Ultra's Cut Open
by jetman - 01/20/20 10:31 AM
Standard Cab Commercial
by Duffyjr - 01/20/20 10:17 AM
The thin grease for firearms
by fnbrowning - 01/20/20 10:07 AM
Replace coil packs with spark plugs?
by jayjr1105 - 01/20/20 09:34 AM
Michelin Premier LTX Different Tread
by chuck wood - 01/20/20 08:49 AM
Best ear plugs for concerts,clubs?
by aquariuscsm - 01/20/20 07:47 AM
Oil ideas for 2 v6 fords and more
by kessellrun - 01/20/20 06:50 AM
Chery A520 2.0 L Transmisstion Oil
by Omar_Eltahan - 01/20/20 02:38 AM
castrol 5w30 c3 for an LS?
by neo3 - 01/19/20 11:32 PM
Windows 10 Upgrade Guide
by OVERKILL - 01/19/20 09:59 PM
Newest Members
ckinch1, EAC1, Kronguy, jamespeter26, RSH
70491 Registered Users
Who's Online Now
111 registered members (1911CHAMPION, 1978elcamino, 66ROGUE, 2004tdigls, AandPDan, 15 invisible), 3,207 guests, and 24 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics300,354
Posts5,174,061
Members70,491
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
2019 Jeep Rubicon F&R Axle UOAs [5,000 Miles] #5292124 12/12/19 06:58 AM
Joined: Sep 2010
Posts: 8,230
2015_PSD Offline OP
OP Offline
Joined: Sep 2010
Posts: 8,230
Here are the UOA results from Polaris for the Dana 44 front and rear axles of my Rubicon (M210 Front and M220 Rear). The viscosity of the oil indicates the factory fill was 80W-90 in both. I would have expected the rear to have 75W-140 in it since I have the towing package and Jeep recommends that oil for towing.

Although I have not used 4x4 mode yet, the front axle had some iron in the oil simply due to the design where the axle shafts spin in 4x2 mode, but the ring and pinion do not. The front axles on the Rubicon have a disconnect built-into them.

I have to say the UOA for the rear axle is the worst I have ever seen with regards to PPM of iron for such low mileage. For only 5,000 miles, it was a surprise to see 604PPM of iron. To put it into context, the cumulative iron for 150,000 miles in my 2010 FX4 (which had towed 8-9K pounds for at least 60,000 of those miles in temperatures ranging from -22°F to +117°F in the desert and mountains) was 697PPM of iron. With that said, these results support the concept that most axle wear occurs at 15K miles or less and it seems the Dana axle is no different.

The oil was fairly acidic with a TAN in the 1.47 to 1.81 range, but without a VOA of the oil to use as a comparison, it will not be possible to know if this is abnormal. However, most gear oil is somewhat acidic, for example, a VOA of Amsoil 75W-140 I performed found the TAN of the oil to be 3.1. As shown in this thread - 2019 Jeep Rubicon Axle OC [5,000 Miles], I picked up a second set of OEM front and rear covers from a fellow Jeep enthusiast and welded in a 1/8" NPT threaded boss into the top of the cover so that I can install a set of ISS Pro temperature gauges to monitor axle temperatures.

Viscosities for both oils are within specification and nothing else abnormal jumped out at me. I will be keeping an eye on the iron and may perform another UOA in a few thousand miles to ensure the iron is trending downwards as should be expected. 1.3QTs of Amsoil 75W-110 was installed in the front axle and 1.5QTs of Amsoil 75W-140 was installed in the rear. I will certainly not be performing any extended oil changes with the small capacity of these axles.

Enjoy!

[Linked Image from iili.io]

[Linked Image from iili.io]


2019 o)|||||(o Rubicon Wrangler Unlimited 3.6L V6 [Castrol Edge + Mahle]
2018 Mercedes Benz C300 2.0L Turbo [Pennzoil Platinum + Mann filter]
Re: 2019 Jeep Rubicon F&R Axle UOAs [5,000 Miles] [Re: 2015_PSD] #5292128 12/12/19 07:10 AM
Joined: Jun 2009
Posts: 909
S
Sunnyinhollister Offline
Offline
S
Joined: Jun 2009
Posts: 909
When did the Rubicon get the front axle disconnects?


2017 Ram 1500 Regular Cab 4x2 5.7L 8spd
2017 Chevy Bolt
2018 Jeep Cherokee Trailhawk
2004 Toyota Highlander AWD - RIP
2001 Ranger XL 4x4
Re: 2019 Jeep Rubicon F&R Axle UOAs [5,000 Miles] [Re: 2015_PSD] #5292195 12/12/19 08:16 AM
Joined: Apr 2008
Posts: 3,595
P
panthermike Offline
Offline
P
Joined: Apr 2008
Posts: 3,595
Thanks for sharing, that does seem like a lot of FE for the rear axle, good call changing it early. My Ram is at 14,XXX and I think I'll do the diffs sooner rather than later!


'17 Armada Platinum; RGT 0w20, 52K
'19 Ram 1500; RGT 5w20, 15K
'70 F100; Valvoline 15w40
Biotech For All
Re: 2019 Jeep Rubicon F&R Axle UOAs [5,000 Miles] [Re: 2015_PSD] #5292207 12/12/19 08:28 AM
Joined: Dec 2017
Posts: 5,598
S
Snagglefoot Offline
Offline
S
Joined: Dec 2017
Posts: 5,598
Excellent post. Thanks.


If you want the job done right......do it yourself.
Re: 2019 Jeep Rubicon F&R Axle UOAs [5,000 Miles] [Re: Sunnyinhollister] #5292213 12/12/19 08:31 AM
Joined: Sep 2010
Posts: 8,230
2015_PSD Offline OP
OP Offline
Joined: Sep 2010
Posts: 8,230
Originally Posted by Sunnyinhollister
When did the Rubicon get the front axle disconnects?
In 2017 with the debut of the JL series.


2019 o)|||||(o Rubicon Wrangler Unlimited 3.6L V6 [Castrol Edge + Mahle]
2018 Mercedes Benz C300 2.0L Turbo [Pennzoil Platinum + Mann filter]
Re: 2019 Jeep Rubicon F&R Axle UOAs [5,000 Miles] [Re: 2015_PSD] #5292462 12/12/19 01:10 PM
Joined: Oct 2007
Posts: 2,047
D
dareo Offline
Offline
D
Joined: Oct 2007
Posts: 2,047
Cool info. Another great contribution 2015_PSD


2018 Regal TourX, 2016 Golf Wagon 5MT, 2016 GMC 1500 SLT 6.2
Re: 2019 Jeep Rubicon F&R Axle UOAs [5,000 Miles] [Re: 2015_PSD] #5292501 12/12/19 01:44 PM
Joined: Dec 2011
Posts: 1,393
T
totegoat Offline
Offline
T
Joined: Dec 2011
Posts: 1,393
Thanks for taking the time.

Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™