Anyone with experience with poor city mileage on their LS600hL? I just bought a 2008 (only 18,000 miles on it!) and am getting advertised highway mileage (21.9 mpg on a day trip last month) but am getting consistently below 15 mpg city. Advertised is 20 mpg. Anyone have similar experience? Anyone have a solution? Judging from the tach the gas engine seems to be cutting out, at redlights, etc., but I wonder if it's not cutting out enough, or re-starting too early, etc. Thanks in advance.