Comparison of real world calculated fuel econ vs indicated econ on instrument cluster
Member
Joined: Mar 2014
Posts: 125
Likes: 0
From: Sugar Land, TX
2011 E550
My mileage is also favorable on the car computer versus my calculation but not by the margin some people have seen. I am running 22.7 since I got the E550 4 months ago but based on actual mileage and duel consumption I am getting 21.6. Not too far off but with almost 22 mpg with a V8 I am quite happy with the results.
MBWorld Fanatic!
Joined: Mar 2014
Posts: 3,107
Likes: 394
From: West Central Florida
2011 E550 P2 4M Sedan
My mileage is also favorable on the car computer versus my calculation but not by the margin some people have seen. I am running 22.7 since I got the E550 4 months ago but based on actual mileage and duel consumption I am getting 21.6. Not too far off but with almost 22 mpg with a V8 I am quite happy with the results.
Member
Joined: Mar 2014
Posts: 125
Likes: 0
From: Sugar Land, TX
2011 E550
I have about a 12 mile ride to work with 9 of those miles highway. It also included a long trip from Houston to Atlanta and with the cruise at 75 or 80 it got almost 26 mpg by my count but 26.9 according to the car computer.
Super Member
Joined: Sep 2013
Posts: 971
Likes: 182
From: DFW, TX
2014 E350 Wagon, 2025 GLC 350e, 2026 E53 Wagon
I have logged over 16k miles and the dash is always about 1 mpg optimistic over the real measurement: http://www.fuelly.com/driver/gregtr/e350
