Mpg
Senior Member
Joined: Mar 2021
Posts: 4,792
Likes: 2,393
There is a consideration that over the year spread from 2015 to the present, the engine compression ratio has increased and contributes to higher torque and HP that has a direct effect on increasing >fuel use efficiency<.
Then there are gear ratios, total weight, A/C on or off, speed and fuel Octane, tire pressers, tire sizes in the mix.
One of these days I will crack 24.7 mpg over the same route I take 4 times a month with a 2018 5L Screw empty and no A/C use.
It also depends on temperature, air pressure and relative humidity as you drive over longer distances.
I use the Green Water fall display trying to keep it as far above the calculated line as possible using the least amount of throttle at speeds between 55 & 65 mph.
Biggest fault with driving, we tend to not reduce throttle after topping a hill where less is needed to keep close to the same speed.
The Water Fall display shows all that if you watch it.
And BTW, cruise control does not always equate to best fuel milage by allowing it to keep speed up without regard to throttle opening that may not be needed at times.
Then there are gear ratios, total weight, A/C on or off, speed and fuel Octane, tire pressers, tire sizes in the mix.
One of these days I will crack 24.7 mpg over the same route I take 4 times a month with a 2018 5L Screw empty and no A/C use.
It also depends on temperature, air pressure and relative humidity as you drive over longer distances.
I use the Green Water fall display trying to keep it as far above the calculated line as possible using the least amount of throttle at speeds between 55 & 65 mph.
Biggest fault with driving, we tend to not reduce throttle after topping a hill where less is needed to keep close to the same speed.
The Water Fall display shows all that if you watch it.
And BTW, cruise control does not always equate to best fuel milage by allowing it to keep speed up without regard to throttle opening that may not be needed at times.
5 Year Member
Joined: Oct 2019
Posts: 2,122
Likes: 630
Ya, that's what I was thinking.
I don't know why but this is the second post I've seen from todd in 5 minutes and he's been overly negative with both posts. Really adding to the community with his uplifting posts!
Every time I get back into this forum I'm reminded that there are a few guys who seem to hate life and love bringing their negative attitude into their posts.
I don't know why but this is the second post I've seen from todd in 5 minutes and he's been overly negative with both posts. Really adding to the community with his uplifting posts!
Every time I get back into this forum I'm reminded that there are a few guys who seem to hate life and love bringing their negative attitude into their posts.
Junior Member
Joined: Mar 2021
Posts: 25
Likes: 9
From: TN
My 2020 F150 5.0L 10spd has 3.31 gears and with the factory tires 275/55/20's I regularly got 22+ on the interstate around 70 MPH and around 18-19 in traffic. Since the 35x12.50's were installed the interstate mileage has been around 20-21 and city traffic 16-17. So I easily dropped 1-2 MPG with the larger tires