hi Hive account@socky it's me again. I'm using a Nismo 2-way LSD on my cefiro. Right now it seems like not locking at all, I'm having a hard time getting my tail sliding out. My friend said that I just need to change the oil, after that it will be tight again. It's been a year since I last changed the lsd oil (redline 75w140). Is this true?

Another test I did was jacking the car up one side. One wheel in the air and another touching the ground. I can turn the wheel in the air with my bare hands, while the other side stays on the ground. (one said, this is normal, there's a free play. Another said this means slipping)