Outer Limits 4x4 Board

tested my LSD today, (after reading some posts) jacked one wheel up. I could turn it easily by hand ,, . I cranked it up and gave it some light brake in forward and reverse. After it warmed up it seemed to start working. I could no longer turn it by hand. I then changed the oil from LSD 90 Castrol to Penrite Limslip 140. I did the same test and couldnt get it to grab at all ...
I wonder if its stuffed ? only done 90K with little offroad before me ( i have done 10K)

You have to let them warm the oil up, they aren't real good cold.

when cold my LSD is useless, but if i give it like 10 mins up the road at 60K's and then off the beaten track, it locks up like a locker, its 263,000K's old, never touched,

best oil i have found is the Castrol LSX90

Ok thanks for that, I will warm it up properly and test again. I wasnt sure about the limsip 140, seemed a bit heavy ..