Getting my PTU flushed today

[Kolk1]

How many quarts of gear oil do you need to have in order to do the flush?

Bump. I'm at 64k and haven't done it yet, but talked to my mechanic yesterday about it.

[MeanKS]

How many quarts of gear oil do you need to have in order to do the flush?

Bump. I'm at 64k and haven't done it yet, but talked to my mechanic yesterday about it.

got this info from another EB message board, dated fromlast year:


Originally posted by First-SHOView Post

What are the factory spec weights and how many qts each for the rear diff and PTU?
Just did some searching and found:

PTU uses 1.1 pints (less than 1 qt) of either 75w140 or 80w140

Rear Diff uses 2.3 pints (less than 2 qts) of 75w90 or 80w90

[n8rfastback]

Fill plug is on passenger side,would it help to have passenger side of car jacked up higher than driver side so you could put in a little extra fluid before putting plug back in?

[crash712us]

You need definitely don't want to put extra in. It will come out the breather. Car needs to be level to properly fill.


Sent from my iPhone using Tapatalk

[IHeartGroceries]

Why is it spec'd so heavy?

I think it's pretty clear that high temps and/or overheating is what's degradating the gear oils so badly.

So, hasn't there been a 13+ PP owner who's swapped in new oil?

I'm going to swap to Redline 75W140. Has a high VI rating, and is otherwise recognized as a good gear oil.
However, I saw a spec sheet on Ford's Motorcraft factory fill, and it looked pretty good.

I think overall this can be attributed to a poor cooling design - sparse oil, no oil and no aux water cooling (on non PPs).

In the next couple months, I'll be at 15k miles, at which time, I'm going to flush, and see just how well the water cooling does for the oil on PP equipped cars.

Sent from my SM-N900V using Tapatalk

[BiGMaC]

IHG... I'll be really interested in what you find.  I've currently planned 25K flush and change in my non-PP SHO, but it just a guess on my part for now.  Seems only the failed PTU's show up for analysis.

[68_GT]

I went by my dealer today they didn't want my money for a PTU oil change. They said my SHO is good for a long time on everything. They stated they only recommend chaning PTU oil if there's a problem. I said but ecoboost forums said ! lol no but I did tell him I have seen some ugly stuff on internet forums but they stick with that they are trained / told.

I wanted to do my PP PTU this weekend since I'm at 31K miles but I'm going out of town so I don't know when I can get to it, but it will be in the next few days / week max.

[Night Hawk]

I went by my dealer today they didn't want my money for a PTU oil change. They said my SHO is good for a long time on everything. They stated they only recommend chaning PTU oil if there's a problem. I said but ecoboost forums said ! lol no but I did tell him I have seen some ugly stuff on internet forums but they stick with that they are trained / told.

I wanted to do my PP PTU this weekend since I'm at 31K miles but I'm going out of town so I don't know when I can get to it, but it will be in the next few days / week max.

Lol but they will be fine swapping out your PTU when it destroys itself.  I recommend you find a reputable local shop to do it.

[Night Hawk]

https://www.youtube.com/watch?v=k3EOtV4DbwM

[IHeartGroceries]

Yeah, you can always find somebody outside of the Ford house to take care of this service.

Interestingly, it seems almost universal that the Ford house service departments believe that these things needn't be tampered with.

Sent from my SM-N900V using Tapatalk

[68_GT]

Lol but they will be fine swapping out your PTU when it destroys itself.  [/quote]

right on lol..... I didn't feel like bothering with them I just wanted to ask and see. I'll do it myself here pretty quick.

[SHO-Pa]

I'm going to swap to Redline 75W140. Has a high VI rating, and is otherwise recognized as a good gear oil.
However, I saw a spec sheet on Ford's Motorcraft factory fill, and it looked pretty good.

I see Royal Purple, Amsoil and Redline mentioned. What's the thoughts about Mobil 1?

The PTU and rear axle don't need friction modifier do they?

[BiGMaC]

I'm going to swap to Redline 75W140. Has a high VI rating, and is otherwise recognized as a good gear oil.
However, I saw a spec sheet on Ford's Motorcraft factory fill, and it looked pretty good.

I see Royal Purple, Amsoil and Redline mentioned. What's the thoughts about Mobil 1?

The PTU and rear axle don't need friction modifier do they?

M1 is good.  Royal Purple beats it on all five major characteristics tested in objective studies... just Google it.  A lot of folks like AmsOil too

[68_GT]

What Royal Purple weight and amount is recommended ? Going to get some tomorrow. Planning to do mine this weekend.

[glock-coma]

What Royal Purple weight and amount is recommended ? Going to get some tomorrow. Planning to do mine this weekend.

PTU  18 OZ.   75/140

RDU  2.4 pints  75/90

2010 RCM non PP
K&N panel filter
sp534 @ 30
unleashed 93 performance+boost
more to come.....