Best axle fluid for Ford AWD PTU

[Fordiesel69]

In summery ford withdrew its "Lifetime Fill" for their PTU's in the ford edge, taurus, explorer, and lincoln variants.

I noticed a lot of people syphon the fluid out and it is a dark burnt grey color even at 30k.

I'd like to stick with 30k intervals on my taurus, what is the best fluid to use, obvisoly not motorcraft 75w-140 if its that black coming out......

 

[rideahorse]

On my 08 Edge I finally change my PTU fluid at 200,000 miles just to see what it was like. I had to drill and tap it so I could drain it. Looked black but didn't smell burnt. I just filled it with 80-90 Valvoline.. Its got 235,000 on it now. No problems yet.

 

[cb_13]

If you're changing it out every 30k I don't think you'll go wrong with any 75w140.

According to MacT Ford Edge on youtube redline lwsp is the best performer in these PTUs. I personally run BG 75w140 as I get it for free from our shops BG distributor.

 

[bdcardinal]

I used Amsoil 75W140 on my mom's PTU on her Fusion 2.0EB.

 

[buck91]

I did a pretty thorough flush on our 2014 Explorer Sport (before we traded it last year). At about 80,000 miles I drained the factory fill and flushed with solvent, then drained and filled with some cheap 80w-90 for a few miles. Then drained and filled with Amsoil SVG 75w140. About 10-15k later (I would have to find my log) I did another drain and fill with amsoil and the stuff came out quite black still.

This sport was fairly easy as it had a drain plug. I just replaced the breather tube with a long piece of oil hose (3/8" IIRC but I'm not 100% anymore). Interestingly, with the oil to water cooler and temp sensor on these I data logged and didn't see temps that were all that terrible.

 

[Black_Thunder]

just changed the PTU oil on my my brothers edge and my mothers escape.


they both got Valvoline Synpower 75w140 so we will see how it does as i plan on changing it again in a few thousand miles just to kinda flush out the old.


the edge I had to siphon out the escape has a drain plug.

the edge i siphoned out what i could, refilled and drove a few miles then siphoned out and refilled again, probably do that next time the oil is changed.