Just done a trip to Vic from Adelaide, recently added the roof rack, Snorkel and 33in tyres. I just got 12.1L/100km and was very surprised. I worked out that the odometer is out 10% with the upgrade tyre size using my GPS. I have read that some people have an increase in fuel consumption am wondering if they don't account for the odometer Being out when working out their fuel consumption? In saying this, I didn't think it be down to 12.1l with the roof rack. Has anyone got an improvement adding the snorkel?