2014 f150 fx4 getting 10mpg highway
#21
4x4 also. Make sure the correct weight of oil is in the front and rear differentials. No brakes rubbing or malfunctioning. Throttle body clean.
Maybe it needs a catch can or a CAI. JK
Maybe it needs a catch can or a CAI. JK
#22
Senior Member
Drive 55 on a flat stretch of road with no wind and see what your MPG is.