Hi,
I also bought a S2 2005 V35 250GT two months ago and from the photos, its looks like you have bought the S1 250GT.
S2 V35 have an updated front bumper, different tail lights, I-key and interior too.
Here are some photos of the S2 V35:
http://csndealers.carsales.com.au/cars/NIS...id=11F9ABE7CEA0
For the tranny oil, you dont use the CVT oil as they are only for the CVT-8 V35.
The 250GT have 4 spd auto and you can use the nissan tranny oil.