I have a 2014 f150 with 3.5 eco boost only getting 15 mpg please help

 

Normal.

 

 

Yes you can. Accelerate slowly to 59 mph and set cruise. Stay 59 or less the entire 43 miles. Leave home early if you need to. Good luck.

 

What he said above ... you should get 17 mpg at least. The 60-70 mph will get you 16+ mpg.

 

You'll want to provide more information about your truck. Did you just get it or have you had it since 14 and it's just now getting bad? If used, how many miles are on it? When and what is the service record? You should be doing much better than 15 MPG. Replace the spark-plugs, change the air filter, air up the tires. and so on.

 

My 12 got 16.5 on highway with CC set at 65 mph. normal was 13.5 going to work. My 18 doing the same drive back and forth to work gets 23+