No kidding, that stuff reeks. Drove it for a couple days and all seems in order so in addition to new tension struts and ball joints today to try and stop a newly persistent rattle over bumps, I’ll drain the diff, look for chunky stuff and assuming all is well, fill it back up and be done with it.

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Current
Original owner 2002 E53 X5 4.4i to 4.6i swap
2025 G06 X5 50e
Former
1972 Audi Fox
1986 Saab 900S
1996 BMW Z3
1998 BMW E36 M3 Sedan
2004 BMW E46 M3
2006 Audi A3 Quatro
1993 Mopar 318 Jeep Grand Cherokee
2015 V6 Jeep Grand Cherokee