ECO Display percentage. How high can you go?
Thread Starter
Super Member
Joined: Sep 2013
Posts: 971
Likes: 182
From: DFW, TX
2014 E350 Wagon, 2025 GLC 350e, 2026 E53 Wagon
ECO Display percentage. How high can you go?
I hit 100% today while cruising home from work.
By the time I got home, it dropped to 99% as my speed had to fluctuate a bit once I got off the interstate:
Stupid gimmicks like this and competitive personalities make efficient drivers.
By the time I got home, it dropped to 99% as my speed had to fluctuate a bit once I got off the interstate:
Stupid gimmicks like this and competitive personalities make efficient drivers.
Thread Starter
Super Member
Joined: Sep 2013
Posts: 971
Likes: 182
From: DFW, TX
2014 E350 Wagon, 2025 GLC 350e, 2026 E53 Wagon
It was actually 72F when I left from work and it hit 85F in the afternoon but the cold front was rolling through as I was driving home. And I did have A/C on. Economy has nothing to do with A/C or even speed or even fuel consumption. You can be doing 50-60mph and still suck at economy or you can be doing 80mph and be a smooth driver with high economy.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 5,851
Likes: 196
From: Huntington Beach, Ca.
'17 Jaguar XF
Curious what it takes into account.
Thread Starter
Super Member
Joined: Sep 2013
Posts: 971
Likes: 182
From: DFW, TX
2014 E350 Wagon, 2025 GLC 350e, 2026 E53 Wagon
But if you accelerate slowly to 100 mph, maintain 100 mph for 20 minutes then coast to a stop your economy will be high as you attained the feat the most optimal way.
Now if you accelerate hard to 50mph, then you accelerate and decelerate like a jackrabbit between 48 and 52 mph and come to a full stop using the brakes hard your economy will be low while your MPG will probably be higher than had you driven the entire distance at 100mph as you'd have to fight 4x the wind resistance at 100mph than you do at 50 mph.
So ECO is a good measure on how optimal you drive regardless how fast you like to drive. A higher ECO percentage for a given average speed will yield a better fuel efficiency no matter what.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 5,851
Likes: 196
From: Huntington Beach, Ca.
'17 Jaguar XF
That's what I thought and it's a good reference for someone's personal efforts. Efficiency and economy aren't the same thing.
