I have been averaging 7.6L/100km over the last couple tanks in town with a smidge of highway thrown in. That figure courtesy of the display, which could be completely out to lunch. I am stage 2 91 OTS Cobb tuned with intake, charge cooler, and cat-back. I'm pretty kind to my car overall, and while it is tuned, I don't wring it out, so that number may be relatively accurate. Will do the actual math on a tank or two of 94 over the next couple months.