I'm going to be doing a differential oil change and this DIY guide says to use 80W-90 GL-5. However, The Nismo Shop only sells 75W-140 and it's "Genuine Nissan Synthetic Diff Fluid." They don't have any 80W-90.

I have a 2008 350z.

 

Get some 75w-90 or 85w-90, not the 75w-140.

See here for details... https://my350z.com/forum/engine-driv...ssion-oil.html

 

Personally, I use Redline Oil 75w90
http://www.redlineoil.com/product.aspx?pid=133&pcid=4

 

So what grade do i use if i wanted to use Genuine Nissan Differential oil?
Service manual says 80W-90... But a Nissan dealership doesn't carry that... How can that be??

 

No one?

 

use motul 90pa and be done with it.

-J

 

My car's a base with no LSD. 90pa is for cars with LSD no?

 

Ive used it other wise as well..its good stuff....

worked great..
-J

 

Oh I bet you can find some in the United Sates or contingency waters.

 

Thanks.........

Well the parts guy said all their employees use the 75w-140 on 350z when they service them. Uhhhh...

 

Stupid Parts guy!!!!

 

funny i jus posted something similar jus a second ago.. m/t oem gl-4 75w-85 for tranny. and rear diff the weight is 80w-90.. but theres where im ? at.. lol.. sales part tech guy @ the nissan told me they use pennzoil when they service their z's.. so im gonna call around other nissan dealers and see what they use 2 sevice their z's.. if its pennzoil then im settling 4 that and thats it hahha..

 

^^^

Seems like different dealerships are using different oils for maintenance. Hmm... Now i question how truthful they are when they're supposed to refill everything with Genuine Nissan oil..

Pennzoil, i've never really heard anything good about that brand before... How much is it per quart?

 

$10 per qt. and the z manual calls for 2qts.. gonna call a couple of nissan dealers today amd see what they use for the rear diff. if its penn then im using penn..

 

^^ Please let me know!!