I was also planning to get a Scanguage II, however, I've read that Australias OBD standard may not work with this american device (something about pins being reversed maybe). I'm just straight out confused about the standards now and am not sure whether to invest money on something like this. I'll be very interested in your progress with this. RaZeR ScangaugeII will work with most vehicles from 2003 or later (for Australian Model, In USA its 1998 or later) Volume of the GEN 5 Fuel tank is 70L. --------------------------------------------------- I've been using the Scangauge II for more than 6 months now, and I can tell you that if you input all the details (engine,fuel tank,etc..) correctly, the information you'll getting is really really accurate. I just love all features on the scangaugeII, best gadget for your $$$. On my Echo, I usually fill up when the Fuel reading on the scangaugeII tells me it has 20km to go (love to go to 0km, but DON'T want to risk it). oh yeah it also tells the Intake Temperature :D (Scangauge are in the process of programming ScangaugeIII...I can't wait for it!)