That doesn't sound right! Mine is an 06 and I get 18 in the city on average and about 28 highway maybe a little more. Gas what kind of fuel do you use? BP and off brands I found that the fuel MPG is lower. Speedway is the worst. I use Marathon regualr and I get good MPG millage. Maybe with a better grade you may get better millage. If you do that and it still isn't getting good millage them maybe your engine is running too lean. If that is the case take it back to the dealer and have them make an adjustment.