Super Coach
GTS, S, CV8Z, SSVR
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So I changed my trans fluid and diff oil on the weekend and thought I would share the info here with anyone else who is keen to do this themselves rather than a dealership.
My car has done 20,000KM but as I have done a few track days and felt my gear shift was abit notchy it was time to change the fluids, as I do not believe the fluid is there for life.
For trans you will need
the square end of a ratchet or or square allen key 10mm
pump bottle - Ordered online for a better price
I filled my trans with Mobil 1 Synthetic LV ATF HP as listed on the AC Delco website. Seems you can only buy this stuff from the states and will need 4xquartz bottles. There is something similar you can buy within Australia but it is not the HP version,
undo the fill plug first then the drain plug (make sure you undo fill plug first (it is normal to hear abit of hiss from air escaping)). The fluid looked very pink when I drained it and the fluid that went in was very red. When doing the drain plug back up dont worry about torque wrenching it as it will just keep winding in (it wont stop) so just do the plug back up inline with the factory check markings and take note how far the plug sticks out before you undo it.
I used the pump bottle and filled in 3.5L Then finger tight the plug back in and start engine up and let run for 1 minute then turn off. After that I topped up until just started to weep from fill point and the trans took 3.6L. I notice the shift is really nice now and easy and no longer notchy.
For the diff you will need
torque head or allen key of 8mm
pump bottle once again - i ordered two rather than having to worry about cleaning out between trans and diff oils.
I bought the correct diff oil made by Castrol for Holden instead of AC Delco stuff. The special Holden/Castrol diff oil can only be bought from a Holden dealer and it is part #92184900.
Once again undo the fill plug first, then the drain plug. The oil was black and grey that came out and the stuff that went in was a yellow clear looking fluid. You will be advised that the capacity is 2.3L on the fill which is incorrect. You will only be able to get 1.2-1.3L into the diff so only buy 2 bottles. Make sure you torque wrench the fill and drain plugs to 33nM. I have to say the car travels much better now with fresh diff oil and seems to just glide effortlessly.
My car has done 20,000KM but as I have done a few track days and felt my gear shift was abit notchy it was time to change the fluids, as I do not believe the fluid is there for life.
For trans you will need
the square end of a ratchet or or square allen key 10mm
pump bottle - Ordered online for a better price
I filled my trans with Mobil 1 Synthetic LV ATF HP as listed on the AC Delco website. Seems you can only buy this stuff from the states and will need 4xquartz bottles. There is something similar you can buy within Australia but it is not the HP version,
undo the fill plug first then the drain plug (make sure you undo fill plug first (it is normal to hear abit of hiss from air escaping)). The fluid looked very pink when I drained it and the fluid that went in was very red. When doing the drain plug back up dont worry about torque wrenching it as it will just keep winding in (it wont stop) so just do the plug back up inline with the factory check markings and take note how far the plug sticks out before you undo it.
I used the pump bottle and filled in 3.5L Then finger tight the plug back in and start engine up and let run for 1 minute then turn off. After that I topped up until just started to weep from fill point and the trans took 3.6L. I notice the shift is really nice now and easy and no longer notchy.
For the diff you will need
torque head or allen key of 8mm
pump bottle once again - i ordered two rather than having to worry about cleaning out between trans and diff oils.
I bought the correct diff oil made by Castrol for Holden instead of AC Delco stuff. The special Holden/Castrol diff oil can only be bought from a Holden dealer and it is part #92184900.
Once again undo the fill plug first, then the drain plug. The oil was black and grey that came out and the stuff that went in was a yellow clear looking fluid. You will be advised that the capacity is 2.3L on the fill which is incorrect. You will only be able to get 1.2-1.3L into the diff so only buy 2 bottles. Make sure you torque wrench the fill and drain plugs to 33nM. I have to say the car travels much better now with fresh diff oil and seems to just glide effortlessly.