Good deal. I changed our 2022 Outbacks front and rear diff this weekend with 30k miles on it. Went with the 75w90. Changed it, drove it a few miles and changed it again. Probably unnecessary ($$) but I went from OEM fluids to Amsoil SVG so hopefully it's not a "mix".
I don't think it looked terrible, but I don't pretend to know much. I attached some pics from when I changed it. It still looked a little amber I thought and was definitely not caked, gummy, tar-goo, etc. This PTU is coolant cooled (if 200* cooling is a thing idk), with no drain plug of course.
The thing is, the FSM calls for 75w140 in those applications. In the 2019 ST it calls for 75w85. Should I stick with what it calls, has anyone tried a 75w90 or higher?
The <2017 Ford Edge Sport PTU calls for 75w140
The >2019 Ford Edge ST PTU calls for 75w85.
I've changed my fluid once at around 35k with the Ford 75w85 fluid but am looking to try the Amsoil SVG if it could help keep PTU temps down? Car is a little over 40k miles now and with the factory...
I wanted to know the state of my engine before I started modding more it as the warranty has expired. So off went a sample to Blackstone. Next I really want to try Amsoil Severe Gear 75w85 in the Ford PTU to keep it going.
2019 Ford Edge ST 2.7TT
Colder plugs and Livernois tune
Oil was changed...