1993 R33 GTS-T auto (so RB25DET S1)
With ~165,000km on odo (although most likely wound back at some stage)
Basic bolt ons (TBE, POD, Boost Tee & SAFC 2)
Last time on dyno (about 2-3 years ago) made ~180rwkw
Used to mainly use Caltex 98, now I mainly use Shell 98 (V-power)
Uses no noticable oil according to dipstick (last time I changed oil about 4.8L came out), oil gets changed every ~5000km with GW Synx-3000 (10w40), before that I had the car serviced regularly at the shop but I have no idea what brand of oil they put in.
Only thing I noticed is that my oil goes dark really fast, (within 500km of driving or so).