From my understanding, and transfer case uses Matic-S and differential oil can be pretty much an 80w-90 gear oil. Other than OEM, I would like to ask which products you've had success with. Preferably something I can get from amazon/ebay.

Also, has anyone ever tried a non-nissan fluid for their 7MT? Mine has had shifting issues (minor bucking, less-than-smooth shifting) for a while and would like to try new fluid. Or perhaps a tranny software update?

What are your thoughts about additives such as friction modifier for the differential?

 

7mt huh?

 

Z06 swapped

 

probaby means 7at🤣 unless he swapped a z06 manual trans

 

Just replaced the G37 diff fluid with Valvoline 80w-90 and prior to that I used Castrol Hypo-C in the G35. No issues with either.