Friction Modifier in LSD

Hi Darren,

I'm no expert at all, but i reckon that the rear tyre grabbing when cornering was proof that the LSD was working. Now that it no longer does that, its "proof" the LSD isn't working!!! The Nissan LSD is about the best in the business and this is why it chatters on road. When it stops chattering, its lost its effectiveness.

Somehow I don't think even changing the oil and flushing will fix the problem, the friction modifiers tend to adhere to the clutch plates themselves. Probably cheaper to replace with a locker than replace the clutch packs at Nissans prices!.

Cheers

Captain

I think he has errored. As Capt says isnt friction how an LSD works? Not grabbing means the LSD is slipping, which means you may as well throw it away..

I have a GU TD Patrol now 6yo/210,000 Ks and I have always changed the diff oils every 40,000 ks and I have always used Penrite LSD diff oil in both diffs.
No problems what so ever.
Never needed to add a friction modifyer.
But I can't see what harm it will do.
Suggest you phone Penrite and their technical people can advise you accordingly.

Darren,
The specs in the manual say Nissan LSD oil KL031-1400 or
SAE 140 API GL5 + 10% friction modifier.
Check in you vehicle handbook.

Rob

Darren

My understanding of the diff grabbing is that it's a known issue with some GU's

I have a 3.0tdi Patrol and the 'grabbing' in the diff was so noticable that it caused a shudder around round a bouts and alike.

It was most prevelant just before my 40,000k service. Obviously I discussed this with the dealer who explained it was a known issue and they fixed it by using a Nissan approved additive. I don't know what the name of the additive is. Apparently this fixes most but if not, Nissan replaces the diff in extreme cases but only up to 40,000k's, apparently!

Anyway, It seemed to fix mine. Now done 65,000k's diff OK but haven't done any extreme off road stuff to test it.

I am told it's just the clutch plate tolerances in the diff are little too tight. If I had my way I would have had the diff replaced but what do recon the chances of that are? Getting anything out of Nissan is just a joke. They don't seem to worried about your initial outlay of 50 grand + or customer service. They just want your money.

While I haven't had any real issues that have 'stopped' my car, little things and having to argue a point every time I have an issue has convinced me never to give Nissan my money again. Not that another manufacturer with be any different but I'll give them the chance to prove me wrong. CUSTOMER SERVICE...what happened to it? where do you get it?

Sorry, got off the track there! Anyway Try Nissan customer support and see what they say. You should have an answer by the time your knocking on the door of your 100,000km service or the year 2007, which ever comes first.

Good luck.