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Maverick mileage versus my calculations

bgctcowboy628

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Don't holler folks. I looked and did not see this on the forum addressing this particular subject. My 2025 Mav indicates that I'm averaging 38.6 mpg. However when I calculate my own mileage I consistently come up 5 mpg less.
Any ideas why?
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inline_five

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You adjust the setting using engineering test mode. There's a bunch of threads on it.

When people post their mpg's they are unknowingly incorrect, I used to mention this but have since given up lol. Generally about 5% high.
 
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bgctcowboy628

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You adjust the setting using engineering test mode. There's a bunch of threads on it.

When people post their MPEG's they are unknowingly incorrect, I used to mention this but have since given up lol. Generally about 5% high.
5 mpg difference
 

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Chops

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However when I calculate my own mileage I consistently come up 5 mpg less.
Any ideas why?
I also calculate my mpg’s - and often find my Maverick overstating mpg’s - but it is not consistent.

My latest fill up matched to the first decimal place.

Both me & my truck use the odometer for miles driven I’m assuming. For fuel used - I use the gas pump figure. Not sure what the truck uses to figure the fuel used.

Sometimes we are 10% off each other’s calculation - with truck always showing higher mpg.

But close enough for government work they say. I’ve driven for decades without the sensors to calculate mpg or psi or battery strength or etc etc and managed to survive.

Airbags & non steel dashboards & safety glass are all nice touches too.
 
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Chops

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ArizonaBillLariat2025

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Don't holler folks. I looked and did not see this on the forum addressing this particular subject. My 2025 Mav indicates that I'm averaging 38.6 mpg. However when I calculate my own mileage I consistently come up 5 mpg less.
Any ideas why?
That's why it's called a Lie-O-Meter.🙂
 

Raymundo76

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Don't holler folks. I looked and did not see this on the forum addressing this particular subject. My 2025 Mav indicates that I'm averaging 38.6 mpg. However when I calculate my own mileage I consistently come up 5 mpg less.
Any ideas why?
It always overestimates has been my observation. Because it makes Ford look good, but 5MPG is a lot, for me it has been about 2MPG
 

vandeda2024

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You adjust the setting using engineering test mode. There's a bunch of threads on it.
This!

All my Toyota's were "optimistic" too. The Prius v I traded in for my hybrid Maverick was optimistic by 2 mpg. My Maverick was also optimistic by a couple mpg. What I appreciate about the Ford is that I can adjust the indicated mpg via the engineering test mode. Now it's close enough to trust (i.e., when I hand calculate sometimes it's a bit high, sometimes a bit low, but usually within an expected margin of error). I could not do that with my Toyota's.

Therefore, go into the engineering test mode and adjust it. It's easy, and then your indicated mpg will be reasonably accurate!
 
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bgctcowboy628

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I also calculate my mpg’s - and often find my Maverick overstating mpg’s - but it is not consistent.

My latest fill up matched to the first decimal place.

Both me & my truck use the odometer for miles driven I’m assuming. For fuel used - I use the gas pump figure. Not sure what the truck uses to figure the fuel used.

Sometimes we are 10% off each other’s calculation - with truck always showing higher mpg.

But close enough for government work they say. I’ve driven for decades without the sensors to calculate mpg or psi or battery strength or etc etc and managed to survive.

Airbags & non steel dashboards & safety glass are all nice touches too.
My findings have been pretty consistantly 5 miles under my Maverick reading
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