Changing the Differential / Transmission Oil on 2003-2006 Nissan 350Z can be a task! This how-to guide shows you how to do it.
Tools Used:
10mm Allen Wrench
Drain pan
Floor jack
Four jack stands or a lift.
Suction Pump/Gun. I bought mine from Advanced Auto for $10.
Harbor Freight has one for $4.99.
Rags
Replacement oil 75W90 about 2 quarts. About 4 quarts for transmission.
Two replacement crush washers.
Procedure:
1. Make sure wheels are blocked.
2. Raise and support the car making sure that it is as level as possible.
NOTE: It is better to drain the fluid when it is warm so it flows easier.
3. Using 10mm allen wrench, loosen drain plug and allow diff to drain.
4. Wipe off excess oil from drain plug along with fine metal shavings. Remove old crush washer and install new washer.
5. After diff/trans is drained, reinstall drain plug.
6. Use 10mm allen wrench to remove fill plug.
7. Remove old crush washer and install new washer onto the fill plug.
NOTE: To fill suction gun, take off the top, pull handle out of the gun and pour the oil into it. You could stick the hose into the bottle and suck it out but it wont pick up as much.
8. Using suction gun, fill diff/trans to lower level of fill plug and allow overflow of fluid to drain off.
9. Reinstall fill plug.
10. Double-check that plugs are snug (I don’t know the torque specs but be advised that aluminum can’t take too much torque so RTFB and/or be careful) and wipe off any excess oil.
11. Lower the car.
