Not that it really helps you, but yeh that does sound a fair bit higher than what it should be using fuel-wise. To give you a bit of background info, I used to live out on the southside of brisbane at hillcrest - driving from there to indooroopilly and back each day for work in my 3.0sd my avg consumption was ~8.5L/100. Last october I moved to indooroopilly and my avg consumption went up to ~10.5. Like you, I like to give it a bit of boot fairly regularly