There is another factor at play here. All PTU's, irregardless of brand, will fail. It's inherent in its design. The factor is the service dealer. My local dealer checks all PTU's at every oil change. (That's how they found my PTU starting to leak around the seal. Gen 1.) Non-Ford mechanics, including handyman oil changes, probably never check the unit. Early detection is the key. It's a lot cheaper to change the seal than to replace the entire unit. The seal starts to leak, unit loses fluid and what's left overheats and fries into goo, resulting in failure.
My local service manager told me that he recommended fluid change at 36k. But they don't push it with customers as it's not a Ford servicable unit. Just for those who ask for if. (Me and one other guy).
Talked to him about using Amsoil and he said they only use Motorcraft designed for this application. He thought that it wasn't the fluid failing, rather the seal getting old and starting to leak. (Mine starting to leak around 92k.) They replaced it under extended warranty and should be good for another 80-90k or so.
All good points for sure. More Ford dealers need to be up to date on this as it would help prevent a lot of heartaches. I posted Amsoil Severe Gear Lube earlier just a help as it's new packaging might make it easier to fill. I do think that Amsoil has a little higher heat tolerance than the Ford lube though. But really the most important issue is just changing the fluid, period. There are a lot of good synthetic gear lubes out there and I'm sure Ford's is very good.
May I ask if you think the extended warranty is good to have. I've looked into it and for less than 2K one can get the best premium care warranty, with zero deductible. Would like to know what others think about this also.
Edited by tk2fast, 26 August 2018 - 03:22 PM.