camo4stealth
Member
Only 500 miles so far, 17.5 mpg
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That’s pretty neat.There is a hidden feature on F-150's called "Engineering Test Mode." You can change certain features within this mode and the fuel mileage calculation is one of them. The link below has good info on how to make the change. Post #60 is a good starting point. It does take some trial and error to get the truck into test mode unless your lucky the first time you try. I was not but I figured it out. ForScan isn't needed, the tool built into the truck. I've only changed my fuel calculation but you can google "Engineering Test Mode" and get much more info if you want to delve into it.
https://www.fordraptorforum.com/threads/forscan-changes-tweak-your-truck.52149/page-60#post-1288182
This link will show you how to calculate the number to enter to achieve more accurate MPG numbers.
https://www.f150forum.com/f118/fix-inaccurate-mpg-display-2-minutes-421912/
There is a hidden feature on F-150's called "Engineering Test Mode." You can change certain features within this mode and the fuel mileage calculation is one of them. The link below has good info on how to make the change. Post #60 is a good starting point. It does take some trial and error to get the truck into test mode unless your lucky the first time you try. I was not but I figured it out. ForScan isn't needed, the tool built into the truck. I've only changed my fuel calculation but you can google "Engineering Test Mode" and get much more info if you want to delve into it.
https://www.fordraptorforum.com/threads/forscan-changes-tweak-your-truck.52149/page-60#post-1288182
This link will show you how to calculate the number to enter to achieve more accurate MPG numbers.
https://www.f150forum.com/f118/fix-inaccurate-mpg-display-2-minutes-421912/
I averaged 11 in the Gen 1