Okay, I now have some reporting to do.
9L/100KM FULL city cycle. Automatic gearbox. No combined, no freeway, just pure city driving in the worst conditions. Peak hour traffic and stuck in traffic jams on Parramatta road for a longgg time at 5PM afternoons. Heater running as well cause cold as dogs balls these days as well as driving lights/fog lights/ambient lights and also amp stereo system on mid/high volume. :P
...over 270KM and filled up only 25L. Bar guage on half tank left.
This is a first since I bought the car new - always did e10 or 91 till now after recommendations here. I am quite happy with this result. I filled up with 95, today I tried 98 and will see if it drinks any "less".