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Check your PTU fluid level!

Dre

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We should do something like -->October is the "Low PTU oil level awareness month"<--

Just a reminder people - check PTU oil in your vehicle often! I procrastinated and kept driving even though I have noticed pick-up in vibrations from the driveline of my 2013 Utility - decided to do the oil change last night and guess what? PTU in my rig was bone dry! Vent tube was disconnected too! I did refill it with new oil but am not sure if the PTU didn't sustain permanent damage - vibrations have subsided a bit but still. I am replacing tranny fluid today and shall see - might have to prepare for PTU replacement. Look at how much fluid I was able to drain!

received_347944379885283.jpeg
 


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omar302

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Go for a 2nd (maybe even a 3rd) drain & refill after a few hundred miles to allow the new fluid to mix well and remove any balance old fluid/gunk.
 








ecoboost_xsport

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Yup, did mine at 25K and only pulled out 12oz. Supposed to be 18oz.

Double check that what used to be gear oil didn't just turn into black crisco by sticking a wire or something in there to see what comes out.

Your fluid looks pretty bad, keep in mind, the gear oil that goes in is virtually clear when its new. Go with something reputable. I used Amsoil Severe Gear Oil, but heard that Redline Shockproof is also the cats meow. I also concur with doing another change very soon to flush out more of the emulsified aluminum and metal particles that are likely floating around in there.

And do the vent fill mod if you can, makes future changes easier.

Write up I did on it:
 




Odrapnew

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Yikes, not much fluid and it looks dark....although the pan could be making it look darker than it is.

I changed mine @ about 60k miles and it was in fairly good shape. Blackstone analysis didn't show anything of concern.
I don't remember how much fluid came out, but I think it was closer to 18oz.
I used Amsoil Severe Gear in mine just because it seemed to get good ratings.
I plan to do another change in the spring when it hits around 100k miles (along with rear diff).
 




Dre

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I did the "vent tube mod" but it's pretty tedious filling this thing up through a quarter inch hole - will definitely change oil again, sometime soon... and possibly another time for good measure within a month - think that if those are not satisfactory I might even go with filling it up with diesel fuel and drive it around the block and then do two refills - sort of a good flush out of the PTU - just not sure if that would be safe for the seals. Oh well, Changed transmission fluid as well - it was not as bad as suspected but still.
 




ecoboost_xsport

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I did the "vent tube mod" but it's pretty tedious filling this thing up through a quarter inch hole - will definitely change oil again, sometime soon... and possibly another time for good measure within a month - think that if those are not satisfactory I might even go with filling it up with diesel fuel and drive it around the block and then do two refills - sort of a good flush out of the PTU - just not sure if that would be safe for the seals. Oh well, Changed transmission fluid as well - it was not as bad as suspected but still.

I've entertained the diesel cleaning idea myself, but lean against it, as you'll never get all of it out and when you fill it with the gear oil, will end up cutting that gear oil. Not sure what ramifications that could have...maybe nothing. Same thing with kerosene...it's a great solvent and cleans well, but the residue may affect the oil that needs to be in there negatively. And since there is already so little of it (only 18oz), I personally felt it wasn't a risk worth taking.
 




Dre

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We shall see - gotta drain it again sometime soon to see if any of the sludge inside dissolved...
 




Rick

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I've entertained the diesel cleaning idea myself, but lean against it, as you'll never get all of it out and when you fill it with the gear oil, will end up cutting that gear oil. Not sure what ramifications that could have...maybe nothing. Same thing with kerosene...it's a great solvent and cleans well, but the residue may affect the oil that needs to be in there negatively. And since there is already so little of it (only 18oz), I personally felt it wasn't a risk worth taking.

Have you ever had an oil analysis done on your PTU fluid to see what starts wearing first?
 




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