Originally Posted by screw2012
I own a 2012 F150, super crew 4x4, 6' 1/2 bed, 3.55 rear axle, with a 5.0 liter. It has 3,500 km (2200 miles) and I am getting 12L/100kms (19.5 US mpg) Highway, 16.5L/100km (14.2 US mpg) City and Combined 14.1 L/100 km (16.5 US mpg).
Can anyone tell me if this is the average fuel economy for the 5 liter? I have put in a K&N air filter in, a Bakflip F1 tonneau cover and nitrogen in the tires.
I am hope to still get better fuel economy out of the 5 liter.
You could check Fuelly (see link below) to see what others are getting with your engine. EPA also allows users to submit their actually experience.
There is not a lot you can do. Slow down is the biggest thing. You could look at low rolling resistance tires, and make sure the pressure stays up to Ford recommended value. Nitrogen helps as it leaks out slower, but nitrogen in itself has no effect on fuel economy. It is the pressure that counts. Oil will make a small difference. I believe your engine may be approved for a 0W-20. It will help some. Penzoil Ultra is probably one of the best. But the biggest is speed. Did I say slow down?