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Ford PTU gear oil life #4515324
09/13/17 03:55 PM
09/13/17 03:55 PM
Joined: Sep 2013
Posts: 10,442
Indiana
dlundblad Online happy OP
dlundblad  Online Happy OP
Joined: Sep 2013
Posts: 10,442
Indiana
A quick BITOG search hasn't shown much info on the Ford power transfer units (PTU) found in various AWD Ford applications. I browsed through the most recent thread (~Spring 2016) and didn't see this posted so I figured it'd be worth mentioning and discussing.

Here's an interesting link I found. Blackstone recomended 10k intervals on a PTU with the factory cooler. Explorer Forum
Keep in mind, this is on an Explorer. I am not sure if there's any differences between these and other AWD Fords. Tauruses, (as well as the SHO), Fusions, Edges etc.

Some PTU's have coolers while some do not. Also, at least on the older models for the North American market, there's plenty of how-to's on adding a drain plug because originally Ford thought it was a lifetime fluid. Simple Googling has shown many failures well under 100k. They get hot and when they're by the exhaust, I imagine they get even hotter.

Last edited by dlundblad; 09/13/17 04:07 PM. Reason: Removed extra )

03 Jeep WJ 4.0 200k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 149k Rotella T5 10w30 Supertech ST3980

Re: Ford PTU gear oil life [Re: dlundblad] #4515341
09/13/17 04:19 PM
09/13/17 04:19 PM
Joined: May 2012
Posts: 5,363
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline
Joined: May 2012
Posts: 5,363
Fort Lauderdale, FL
From what I've seen of those without coolers, if be doing that every 5k miles.

Once out of warranty, I'd add external cooler, pump, and filter.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: Ford PTU gear oil life [Re: dlundblad] #4515438
09/13/17 06:14 PM
09/13/17 06:14 PM
Joined: Jun 2017
Posts: 388
Western usa
Ammofirst Offline
Ammofirst  Offline
Joined: Jun 2017
Posts: 388
Western usa
What fluid does it call for. Hopefully not some proprietary special sauce at $50.00 a quart

Re: Ford PTU gear oil life [Re: dlundblad] #4515444
09/13/17 06:16 PM
09/13/17 06:16 PM
Joined: Jun 2005
Posts: 11,319
Santa Barbara, CA
bdcardinal Online content
bdcardinal  Online Content
Joined: Jun 2005
Posts: 11,319
Santa Barbara, CA
75w140. We have seen just as many failures with the police units that have the larger cooler as the ones that don't.


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.
Re: Ford PTU gear oil life [Re: DoubleWasp] #4515530
09/13/17 07:53 PM
09/13/17 07:53 PM
Joined: Aug 2006
Posts: 9,798
Central Washington
Colt45ws Offline
Colt45ws  Offline
Joined: Aug 2006
Posts: 9,798
Central Washington
Originally Posted By: DoubleWasp
From what I've seen of those without coolers, if be doing that every 5k miles.

Once out of warranty, I'd add external cooler, pump, and filter.

Agree. The heat is destroying the oil is such a short period of time you almost might as well do monthly or weekly changes. Its so pathetically underengineered.
I think like $500-600 could get you a professional oil circulation pump, stacked plate OTA cooler, filter and filter head, plumbing and lines. If you can keep the oil under 200F average you could probably run 30-40-50k on a change.

Last edited by Colt45ws; 09/13/17 07:53 PM.

-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2
Re: Ford PTU gear oil life [Re: dlundblad] #4516445
09/14/17 07:31 PM
09/14/17 07:31 PM
Joined: Apr 2012
Posts: 2,568
West Michigan
buck91 Offline
buck91  Offline
Joined: Apr 2012
Posts: 2,568
West Michigan
Did a little under 12mo and around 10k miles on my wife's 2014 Explorer with Amsoil SG 75w140. Came out looking almost as bad as the OE stuff did at 70k miles.


2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop
Re: Ford PTU gear oil life [Re: bdcardinal] #4516461
09/14/17 07:47 PM
09/14/17 07:47 PM
Joined: Sep 2010
Posts: 6,987
Texas
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 6,987
Texas
What does the cooler look like? - mine has a scoop under bumper and air duct back to the region. One pipe was so close that I had a muffler shop swing it wider to both move heat source and be able to reach the drain plug. I wrapped the pipes with a really good header tape.

Will try my method of oil change in 3 weeks - going with Motorcraft ...

Re: Ford PTU gear oil life [Re: 4WD] #4516726
09/15/17 04:50 AM
09/15/17 04:50 AM
Joined: Sep 2013
Posts: 10,442
Indiana
dlundblad Online happy OP
dlundblad  Online Happy OP
Joined: Sep 2013
Posts: 10,442
Indiana
I haven't had a chance to take a closer look, but from what I've seen online, it just has 2 coolant hoses connected to it.


03 Jeep WJ 4.0 200k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 149k Rotella T5 10w30 Supertech ST3980

Re: Ford PTU gear oil life [Re: dlundblad] #4517005
09/15/17 11:42 AM
09/15/17 11:42 AM
Joined: Apr 2012
Posts: 2,568
West Michigan
buck91 Offline
buck91  Offline
Joined: Apr 2012
Posts: 2,568
West Michigan
Hey now this is exciting! Hooked up my obd2 Bluetooth and opened forscan lite. It is able to monitor Tue ptu temp sensor (which is called transfer case.temp).

Was 145 degrees when I just scanned on a short trip, but the car was driven a lot earlier in the day also.

I'll post back when I have better data.


2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop
Re: Ford PTU gear oil life [Re: buck91] #4517919
09/16/17 03:07 PM
09/16/17 03:07 PM
Joined: Sep 2010
Posts: 6,987
Texas
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 6,987
Texas
Did you stick with ASG? Thinking I'll go MC until warranty is out and then try Redline - anyone running that in Ford PTU's?

Re: Ford PTU gear oil life [Re: dlundblad] #4517973
09/16/17 04:39 PM
09/16/17 04:39 PM
Joined: Apr 2012
Posts: 2,568
West Michigan
buck91 Offline
buck91  Offline
Joined: Apr 2012
Posts: 2,568
West Michigan
8 miles from "cold" start with 85f ambient temperature. Ptu is 157f.



Last edited by buck91; 09/16/17 04:40 PM.

2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop
Re: Ford PTU gear oil life [Re: dlundblad] #4518494
09/17/17 11:10 AM
09/17/17 11:10 AM
Joined: Jun 2002
Posts: 19,230
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,230
Iowegia - USA


Reading is fundamental; understanding is not a given ability.
Re: Ford PTU gear oil life [Re: dlundblad] #4518542
09/17/17 12:12 PM
09/17/17 12:12 PM
Joined: Dec 2002
Posts: 4,148
The Garden State
Whimsey Offline
Whimsey  Offline
Joined: Dec 2002
Posts: 4,148
The Garden State
Does the AWD beat up the PTU fluid worse than the 4WD does in a 2017 2.3 EcoBoost Explorer? If I'm not mistaken if the 4WD is not engaged then the Explorer is in front wheel drive mode. Is it using the PTU while in FWD? With the 2.3 EcoBoost in this Explorer it looks like there is plenty of air space between components underneath. I don't have an under body "shield" which makes doing any maintenance underneath easy. I had the dealer change the PTU fluid at 9,000 miles and will do again around 18,000 miles. It looks like it's a beotch to do yourself. At that point I'll have the dealer change the rear diff also, it also looks like a real pain to change compared to the rear diffs that I'm familiar with. Sad to say I'm not getting any younger and my body fights me everyday. Though changing the oil& filter and ATF is a piece of cake on this vehicle grin.

Whimsey

Re: Ford PTU gear oil life [Re: buck91] #4519114
09/18/17 04:20 AM
09/18/17 04:20 AM
Joined: Sep 2013
Posts: 10,442
Indiana
dlundblad Online happy OP
dlundblad  Online Happy OP
Joined: Sep 2013
Posts: 10,442
Indiana
Originally Posted By: buck91
8 miles from "cold" start with 85f ambient temperature. Ptu is 157f.




Was it actually holding at this temperature? 157*F doesn't seem too bad.


03 Jeep WJ 4.0 200k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 149k Rotella T5 10w30 Supertech ST3980

Re: Ford PTU gear oil life [Re: MolaKule] #4519119
09/18/17 04:41 AM
09/18/17 04:41 AM
Joined: Sep 2010
Posts: 6,987
Texas
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 6,987
Texas
Even lower with Motorcraft FF - 262F (0.7)

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