Need some help with gear oil recommendations for my AWD EcoBoost Ford Flex.
The factory fill rear differential fluid is a dino 80w-90 Motorcraft XY-80W90-QL conforming to the following specs: MIL-PRF-2105E, Mack GO-J, WSP-M2C197-A, GL-5 and MT-1 specs.
I also need a replacement fluid for the...