Gtr quaiffe front diff oil?

[SiR_RB]

Hey guys

what is the recommended oil to use in a quaiffe front Gtr diff please 

 

can’t find any solid info anywhere 

 

thanks 

[GTSBoy]

Normal diff oil.  No need for LSD oil because there are no friction surfaces in there.

[SiR_RB]

Thanks

 

what weight would be recommended 

around a 75-90 or 90-140 ?

[KiwiRS4T]

From their website:

"The Quaife ATB differential has been designed to use the standard transmission oils"

The factory website promotes Fuchs Titan oils but the New Zealand agents sell only Syntrax 80 -140

[SiR_RB]

Cheers mate 

[burn4005]

any 75W90 GL-5 will be fine, you don't need the friction modifiers, but you can use an oil that contains them (as most already do)

I've always used Amsoil severe gear or Redline oils, but anything fully synthetic would be fine.

[SiR_RB]

Perfect thanks !

[BK]

Just a note on the diff oils weight wise. If you've got any substantial power through your driveline go the 75w140 on front and rear diffs even if they are standard Nissan in GTRs LSD or open. The Motul gear competition stuff or Castrol saf-xa (or whatever it is called now, Syntrax 80w140 I think replaced it) is the only stuff I use after my 15+ years with my GTRs. I was using 75w90 in front diff while dragging with open diff at 450+kw at wheels, and it turned my front crown wheel and pinion into junk. It seriously wore away more than half of the gear tooth profiles on crown wheel and pinion making the edges razor sharp, which they are not supposed to be. There were not any backlash clearance issues either, only happened when the wick was turned up. The same applies to dog boxes - 75w140 only or you WILL kill any of them.

It makes it really easy if you run a dog box because then you just run the same oil in front diff, rear diff and box.

BTW I run Quaife front and rear diffs in my 32.