need to change my transmission and Differential fluids soon on my z....wanted to get the people info/opinion on what you all are using?? royal purple, Mobil1, Amsoil, OEM, etc...??? i know OEM recommed APL GL-4, VISCOSITY 75W-85 OR 75W-90 FOR THE TRANSMISSION AND API GL-5 VISCOSITY SAE 80W-90*5 FOR THE DIFFENTIAL after research on this forum looking for good performance fluids??? any links will help??

 

Search the Drivetrain sub-forum on "fluid*" - you'll get all kinds of threads that have discussed this to death.

 

+1...OP, I went with synthetic in both.

 

This thread will tell you all you need to know:

https://my350z.com/forum/engine-driv...ssion-oil.html

/thread