Best Gear Oil for J30 Diff...... Opinions

[ShouldaHadaV8]

Trying to see if I can get some opinions before just buying "some new stuff".

[S13AL]

If your talking about what you put in your pumpkin just use generic gear oil. It makes no difference because, the viscous fluid is separated from what's in your diff casing.

[ShouldaHadaV8]

yeah I was wanting put new fluid in the whole thing.... haven't really looked into it too much, the j30 diff was on the car when I got it. just got the motor swap working finally and was wanting to make sure the rear end was healthy. fluids in the diffrential is deffinetely not my specialty

[AZhitman]

Clean it out real well (I use brake cleaner or gasoline). Drain and dry.

I prefer Mobil 1 80w90 for a Nissan VLSD.

[PEZi]

Clean it out real well (I use brake cleaner or gasoline). Drain and dry.

^ this....

any GL-5 rated fluid will do

[scotty-2-forty]

Clean it out real well (I use brake cleaner or gasoline). Drain and dry.

^ this....

any GL-5 rated fluid will do

... and the reason would be to ensure removal of the old broken-down viscosity fluid as well as metal micro-debris. I use Redline 75W90 Gear Oil, which is GL-5 compatible.

[ShouldaHadaV8]

Thats what I was thinking. Redline Shockproof but I just thought I should get Ideas from a few who have dogged the r200.

[GrilledCheese33]

I use lucas 80w-90 in mine...