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PTU and Rear Diff Fluid Change - 2011 Explorer XLT

Discussion in 'Stock 2011 - 2019 Ford Explorer Discussion' started by 182RG, May 30, 2016.

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  1. Odrapnew

    Odrapnew Active Member

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    Just an update on my PTU fluid analysis. I sent a sample off to Blackstone and got my report back today. The summary is that the analysis is more representative of a 30k mile fluid instead of the 61k miles it has on it. From the report, the Aluminum and Iron levels are well below the averages. Gotta remember the picture above of the drain plug magnet, so I'm sure a good amount of iron is on it vs in the fluid. I might change it again in another 30k miles.
     
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  3. metroplex

    metroplex Active Member

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    The only time the PTU gets a drain plug is if it has the cooler. So the SHO with Perf Pkg, Explorer Sport, and Police Interceptors with PTU coolers get drain plugs and no fill ports other than the sensor. The D3/D4 without PTU coolers have the drain plug and no sensor or fill port.

    The Fusion Sport uses a different PTU but with the same 6F55, and has an integrated cooler with the drain plug and if I recall, a fill port or the sensor.

    At 20k miles, my SHO PTU oil looked done. The rear diff oil looked brand new though.
     
  4. 1995E

    1995E Well-Known Member

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    I wonder if the exhaust location has anything to do with why the PTU oil burning up? Also, I think this says it all that the Ford AWD system is garbage. Lifetime is also considered to last 150K miles so I guess if they advertised it as lifetime, they probably meant it’ll hold until 150K.
     
  5. metroplex

    metroplex Active Member

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    Ford's current AWD cars and SUVs are great vehicles to lease.
     
  6. peterk9

    peterk9 Staff Member Moderator Elite Explorer

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    What about the Platinum? It has basically the same setup as the Sport does it not?

    Peter
     
  7. Mr Pink

    Mr Pink New Member

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    Should I worry about adding any rear end additives to my 2014xsport?
     
  8. LROB75

    LROB75 New Member

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    I have a 2014 Ford Explorer Sport 3.5 Ecoboost (47k miles) and mine does have drain plug. I believe depending on the model some PTU's might or might not have drain plug. I was able to drain most of the fluid through the drain plug and used a fluid extractor that pulled maybe another 2-3 ounces out of the PTU (it was all black and nasty). For the refill, I replaced the original vent hose with a 2 feet of 5/16 rubber fuel line. Luckily, I had a small funnel that I was able to put slightly over the 5/16 hose and just filled the funnel half with gear oil and walked away for 30 minutes, I'll come back and repeat the process. I found this to be the best process and easiest way to fill the PTU. After I was done I installed the vent breather valve on the new 5/16 hose and now I have a new fill hose that's longer and easier to access. Ford really needs to install longer vent hoses for the PTU but at $180 per PTU fluid change why would they do it. right!?
     

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