15.4 on my last tank, even had some freeway time. I was cruising down the freeway in Tijuana in the fast lane when my right ear hard the obvious sound of an after market twin screw. Two lanes to my right was a 15 up s550 Saleen rowing the gears hard. I joined in and passed him, and we went back an forth for like 5 miles. Was a blast, killed my mpg. But the smiles per gallon were worth it!