Going to go synthetic in trans & rear end, owners manual does not include capacities - any help from some one with shop manual?

 

Yeah, ill help.....

Differential gear oil
Capacity: 3 pt-US / 2.1/2 pt-IMP / 1.4 L
API GL-5*1, Viscosity SAE 80 W-90

Manual transaxle gear oil
Capacity: 3.1/4 qt-US / 2.3/4qt-IMP / 2.9 L
API GL-4, Viscosity SAE 75W-85 or 80W-90

IMP=Imperial units
US=USA measurement
L=Liters (metric system)

<font color=green>-Ramb0</font color=green>

 

M/T and Differential Drain plugs torqueing:
30 - 39 N-m (3.1 - 3.9 kg·m, 23 - 28 ft·lb)

<font color=green>-Ramb0</font color=green>

 

Has anyone put synthetic in their Rear diff? If so, how is your car running? Any MPG gains? I'm thinking of going to Royal Purple rear diff fluid. thanks.

 

While researching limited slip post's on my350Z.com on thing kept comming up from people that either race or drive hard. The transmission and diff tend to get extreamly hot while operating in those conditions. That alone is reason enough for me to go synthetic.

Ivry 6mt sed
Injen CAI, 22" resonator
8X18 Enkei RPM2 45mm
Kumho MX 245/40
clear corners

 

Put Red Line in both the trans and the rear end about 6 weeks ago. trans now smoother. No noticalbe difference in gas mileage. Ran Red Line in Maxima manual for 130K miles - worked great for me.