I blame it on the reversed step pattern.VinceTopasBlau3 said:about 112miles over 10.71 gallons!!! Whatever happened???
Hook up your OBD-II software, and do a scan. See if there were any faults stored. It's a long shot, but worth seeing.
10mpg is unusually low.. are you sure you filled the tank all the way at the last fill-up? That would skew your results significantly.