These are my fuel consumption figures:
25L - 180km's = 13.8L per 100kms city driving.
Seems a bit high for me, I though these should be more like 10L city driving then around 8L on the highway.
Motor is only running around 10psi boost,small intercooler, is a manual, car weighs around 1100kg's.
This is driving sensibly, and not boosting it too much.
Apart from a blocked up o2 sensor(I don't know what condition my o2 sensor is) could their be any other reasons she would be drinking this much? Ran injector cleaner in her too. One of the turbo's seals is on the way out not sure if this would be affecting it.