Please, bad fuel milllage on 2.3 DOHC help!
I just bought used 2003 2.3 DOHC Focus whit 55K on it and can't make more than 300 milles a tank in average which is inacceptable.
Othervise the car runs and accelerate greate, but gas consuption?
What to do first in order to fix it? Air filter have 150K life, tire presure OK, brakes OK, driven very moderate.