Ok, I've decided to give Redline a try since I've heard so many praises on here. My question is what weight gear oil should I go with? The service manual calls for 75w-85 for manual trans and 80w-90 for the rear diff. I went to this website but didn't find the weight for my car although I may have over looked it. So what do you redline believers recommend and have put in your cars? To shockproof or not?

Eddie

 

oopppss...forgot to add the link

http://pitstopusa.com/REDLINEGEAROILATF.asp

 

I think there are 3 ppl put in shockproof so far, including myself.. I have no problem with it what so ever.. It it slick and you can tell the difference right away...

use the lightweight shockproof.

 

I installed MT-90 in my tranny, and 75w90 gear oil in the diff. While shifting notchiness is not eliminated, shifting is a little smoother. The tranny is also quieter on the highway; an unexpected bonus.
The concern I had with using Shockproof is that it is intended for racing applications only, and does not carry a GL certification. This might cause warranty claim difficulties, should Nissan happen to ask what fluid you used. MT-90 is pretty close to the suggested viscocity, and it meets the GL-4 rating.
Mika

 

I was told by a Redline distributor the exact same thing. They recommended the MT-90 and NOT the lightweight shockproof stating that Nissan MAY have warranty issues with it since it is for racing applications.

 

your responses are highly appreciated and have been very helpful.

Thanks!!!!