Weird miles to the gallon

[CameronM0521]

I recently realized my car is not supposed to only get 189 miles on a full tank and did a little experimenting and on eco mode doing 14 mpg and drove 1.1 miles and my miles went down by 4 miles! I did a further test and was doing 30mpg and it went down by nearly 10 and is now under 160 miles

 

[2020FordRaptor]

That miles to empty is constantly recalculating, and every driver drives differently, so I’d say it’s just the way it’s been drive in the past.