Differential oil, even synthetic, always seems to be quite stinky.
I wonder if sticking a king-hell powerful magnet to the outside of the differential, and the engine and tranny oil pans would be useful at keeping metal filings out of the gears?
Semibodacious Transmogrifications a Specialty
1990 300D 2.5 Turbo sedan 171K (Rudolf)
1985 300D Turbo TD Wagon 219K (Remuda)
"Time flies like and arrow, yet fruit flies like a banana"