Well...as you probably know, gear oil is about THE most foul-smelling product anywhere on these cars. I should have done this job outside but, oh well. It was very dark as well but there was nothing chunky in it and it poured rather smoothly. All I can do is replenish it, which I have, and drive it till I see smoke coming from one of the wheel bearings or there is a catastrophic failure. I ran it in gear with the arse off the ground and the rear end spun smoothly and silently.