2010 4.0L LE with 90k miles.
I am getting absolutely dismal fuel mileage - around 270 miles per tank.
Although this is mainly city driving, when driving on the highway it doesnt get much better.
Any ideas what can be causing this? My tires are inflated properly, and the only ECU code I currently have is P0442 (EVAP failure). Anything else?
What maintenance items should I address? The air filter looks clean? When should the plugs be done? Throttle body cleaning? MAF cleaning?