Last week I changed the oil in my diff as it was the last unchanged fluid on my car.
From the moment I dropped the plug my heart sank to it's boots as this opaque pink thick fluid the consistency of watery toothpaste came out.
I refilled it with Penrite Limslip 90 and gingerly took it for a run but nothing untoward happened- no noises and no problems and the impression that the slippery diff was working better than before.
Today while working on my airconditioning with the car on the hoist...