Hey! Just saw your message. Mine's an 09 - depends where I'm driving though. If it's just straight highway I average near 30 mpg most of the time - but otherwise going 85 mph and slightly uphill it'll go down to about 25... From WY down to CO I think it's slightly downhill, and have averaged 33 before. Have studded tires on it right now and mileage from CO back up to WY dropped a couple mpg - you can definitely get over 27 though, just don't accelerate too hard (annoying, I know!!!)
hey what year is your Subi? I am trying to get more than 27 on the highway driving between 70-75 mph. any engine oils you use? i got T-rated tires that might be killing a couple of mpgs. i need new spark plugs. maybe that helps to. i drive an 02 WRX wagon.