MPG Display Accuracy

The accuracy seems pretty good on these as I have checked several times and it is always close. Today's fill up was 18.78 Gallons and 399.4 Miles, = 21.267 and the display was 21.3.

 

Mine seems accurate as well. Every vehicle I have owned before has been way off.

 

Seems like the older ones pretty much just guessed.

 

Usually <= .2mpg margin of error, but a few times it was about 1mpg off.

 

I have been impressed by the accuracy.the times I have measured I usually showed .2 more mpg than indicated

 

21.3 average, im assuming mostly Highway? i cant seem to get above 18 haha

 

Just traded a 2018 Crosstrek that was waaay off. Showed in the 30mpg range all the time and I never got better than 28 actual. The Tacoma is almost spot on if not even a little under estimated.

 

Mine was off by quite a bit for the first few thousand miles. Now it's pretty close, within 0.2-0.3 mpg.

 

No, that tank had a combo of just about everything, rural roads, city, highway, and even stuck in road construction. It does better in warm weather but the overall MPG average since new has been about 20.

 

Summer gas, back to high 22's and 23's mpg... If I baby it, I can average 24mpg. Stock Sport DCSB MT with a TonnoPro cover..... Actually it has been off for the last 2 weeks - hauling to much shit.

 

Mine tends to be two to three tenths of an empeegee off when compared to Fuelly, but it's pretty close. I'm betting different sized tires would affect this as the computer is calculating everything based on factory programming.

 

Mine was always about .5 mpg too high before I dumped my Goodyear tires and got my Michelins. Now it's within about .1 mpg.
Also, I'm getting close to 2 mpg mileage improvement. Can't explain it, but I'm sure happy.

 

I'm averaging 20.4mpg right now with my 2018 Sport 4x4. My daily commute is about 13 miles one way going from 50-60-35-60 on speed. It's basically city driving then a few miles of US highway. We live at about 3900' elevation. I only use the mid grade fuel though. Have seen all my vehicles get better gas mileage with mid fuel where we live.

 

Mines pretty off but I have 33" tires.

Dash shows worse than I'm actually getting.
Usually shows 14-15l/100km
But doing the math accounting for larger diameter and fuel pumped I'm now around 12.8-13.5L/100km

 

Mine is <.2 mpg. My overall average now is about 20 mpg. AT runs in fifth most of the time on the interstate at 72 mph. It will downshift to fourth on some of the grades. I do not use cruise control.