iwillruletheworld

I'm just wondering if anyone else has notice that the fuel mileage being reported by the computer does not match calculating the actual fuel mileage.

For example, at my last fill on my 2016 Lariat with the 3.5L EB, I put 25.01 gal. of fuel in and had 419 miles on the tank. This would be about 16.75 mpg but the computer reported I got 17.6 mpg.

I reset all mpg calculations and trip odometers when I fill up, so it is accurate for that tank. If it was close (+- 0.1) I wouldn't be too concerned but this was almost 1 mpg off. I have noticed this same problem with various differences on different tanks of fuel.

Would love to hear if it is just me or if anyone else is experiencing similar issues.

lutter5-0

Pretty sure all vehicles lie about in dash mpg's since the day they started offering it, among all the OEM's. People seem to just accept it's about 1 low in most cases. I reset the trip and the fuel used, is usually 1-2 gallons short (makes me think there is more in the tank than there is).

JAMADOR

My 2.7 is consistently .5-1.25 mpg high.
Doesn't really bother me, since I use fuelly to track it all.
Our '13 Flex is within .25mpg usually.

rival

You don't say?

longbedbob

FWIW, both my new F150 and our Volvo S60 both come in 1-1.5 mpg below the indicated readings.

With a lot of stop and go driving or idling, actual fuel economy can be off as much as 4-5 mpg from indicated.

I consistently fill to the point of nearly overflowing and document my fill ups with an app called "Carcare". For craps and giggles, I've always entered a note stating the indicated reading each fill up just to track these inaccuracies.

TerryH22

Mine is pretty accurate... about being 2 mpg off...

deserteagle69

Same here. I log all fuel into a spreadsheet which calculates my mileage; for the life of my truck overall average is 20.5 mpg. But the lie-o-meter in the dash consistently tells me I'm getting 22-23 mpg.

iplayloudly

Anybody run out of gas yet? If so, did the truck say you still had a few miles to empty, or was it on 0?

Livoniabob

We are all still waiting for the first reported case of the MPG showing to be accurate.

SixShooter14

Mine has been exact for 1 tank in the last 15k miles.

That tank was also the lowest. at 15.2mpg.

I have noticed a pattern.
Reported - Actual - difference
15 - 15 - 0
17 - 16.8 - .2
19 - 18.5 - .5
21 - 20.3 - .7
23 - 22 - 1