QUOTE(Frankvw @ Aug 13 2020, 07:24 PM)

porschetub, you asked for comments, here mine:
"to be expected after being changed very recently"
well...the fact is that gearboxoil is not changed very frequently and I guess also not recently if you did not do it yourself.
Only in racecars and trackcars and autocross they change it more often,but in daily drivers it is not changed in real life untill a real car guy gets his hands on it.
How do you know it was changed recently ??
and if you find "fair amount of what was nothing but dirt and shit" then that is stuff that does not belong there ofcourse.
Maybe it was a spare box that was laying outside and when they wanted to use it, it just got topped off with gearboxoil instead of flushing it first...
PS : GL5 comes in several colors. Good you have a color you like

Like the end comment about the oil colour

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Some history...I bought a restored roller and the gearbox and half shafts were packed up in the frunk when the car was shipped to me.
Gearbox had no oil in it and was clean on the outside with no evidence of corrosion so 100% sure it was never stored outside,I filled it with oil before fitting,after 300 miles or so the input shaft seal failed so drained the box and fitted new seal,oil changed again.
I have now come to the conclusion that I most likely put used oil in it as I found the container yesterday and the remainder in it was the some cloudy colour

,I'am normally very careful to mark containers as used oil for recycling...lesson learnt here

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