I just switched out the gl-5 gear oil in my transmisson i put in 2 weeks ago.
I replaced it with pennzoil synchro mesh and it shifts so smooth. With the other oil it was kinda notchy in 2nd and 3rd. Anybody else running pennzoil? Im gonna wait to order some redline mt-90 till i change my cv-axle.

 

Is the Pennzoil GL4? What weight - 75w90, 80w90, ?

You should be thankful you got that GL5 out of there!

 

IT doesnt say.........But i have heard some guys talk about it and my buddy with a 92 awd talon uses it. If it keeps a dsm transmisson working great I would hope it would do good in a nissan

 

It should say, and it's important to know...

 

Syncromesh is syncromesh........There are not diffrent weights of it.

 

I just checked Pennzoil website and it says that Syncromesh is only for GM and Chrysler.

 

Yea good thing you did get that GL-5 out of there.

 

It is more than likely on the bottle that it satisfies multiple "GL" grades but I would only use a specific GL-4, like the MT-90 you mentioned.

 

It also prob. just felt good because it was fresh fluid . . .

 

Do not use Syncromesh in a Maxima gear box, even Pennzoil says not to use it as it is not Gl rated, and may harm your syncros as well. They make a true GL-4 rated 75W-90 synthetic, which would be fine.....................