Skyline R33GTR

ok thanks everyone thinks its gear oil, either way its box out, happy days.

Hi all newbie on hear but i'm after some advice on my R33 GTR The clutch pedal went to the floor so major loss of fluid on closer inspection there was no telling were it was leaking from. After rebleeding the slave cylinder there is now fluid coming out of the bell housing. Is this the concentric slave that's let go. Thanks inadvance