Mileage on freeway driving?
Thread Starter
Newbie
Joined: Jun 2025
Posts: 4
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amg cle 53
Mileage on freeway driving?
What is it that I do not get about the mileage? Bought the car in January (see picture in my album, AMG CLE 53) and only two weeks ago took it on a long trip. After a 190 trip, the amount of gas in the tank went down only by 70 miles. There was a stretch of 40 miles where I drove a constant 70-75 mph and according to the indicator I did not use anything in the tank. It fluctuated between 301 and 302 miles of available mileage the entire 40 miles. Is the indicator logarithmic and pretty soon will it go down fast?
This is not a hybrid.
I am curious.
Thanks
a1ring (in memory of my best F1 experience in Austria)
This is not a hybrid.
I am curious.
Thanks
a1ring (in memory of my best F1 experience in Austria)
Out Of Control!!
Joined: Nov 2018
Posts: 11,428
Likes: 5,336
From: San Francisco Bay Area
2019 C63CS
The projected range is based on your recent consumption over the last 15-20 miles. So if you are mainly doing city driving, then your consumption is high for the recent ~20 miles, so then if you suddenly set off on a long highway journey at constant speed, your average consumption over the last 20 miles goes down, so your projected range increases as it assumes you will continue driving like this. You are gaining miles if you will. In the EV world, the range indicator is often referred to as the Guess-O-Meter. It's not really any different with gas cars. Range is always based on past consumption and if your average consumption suddenly changes then the range increases or decreases accordingly.
Last edited by superswiss; Jun 14, 2025 at 08:29 PM.
Thread Starter
Newbie
Joined: Jun 2025
Posts: 4
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amg cle 53
I do realize that future estimates are based on past performance but I have asked this question because I have never encountered anything like it on numerous other cars I have owned. So I thought that there could be something else getting into the picture, e.g. the 48v battery.
I started keeping a spreadsheet, not because I care about mileage consumption but because I am curious.
I started keeping a spreadsheet, not because I care about mileage consumption but because I am curious.
Out Of Control!!
Joined: Nov 2018
Posts: 11,428
Likes: 5,336
From: San Francisco Bay Area
2019 C63CS
I do realize that future estimates are based on past performance but I have asked this question because I have never encountered anything like it on numerous other cars I have owned. So I thought that there could be something else getting into the picture, e.g. the 48v battery.
I started keeping a spreadsheet, not because I care about mileage consumption but because I am curious.
I started keeping a spreadsheet, not because I care about mileage consumption but because I am curious.
Junior Member
Joined: Apr 2025
Posts: 24
Likes: 1
From: Greater Washington DC
CLE53, S560, C43, GT55, M3, Jaguar XKR
Took delivery of my CLE53 Cab last month (May), it is averaging between 26 and 29 miles per gallon on a mix of city and highway driving.
Now I have around 900 miles on it and the car is becoming even more fun to drive. Once it gets over 1001 miles, it will really open up.
Cheers
Now I have around 900 miles on it and the car is becoming even more fun to drive. Once it gets over 1001 miles, it will really open up.
Cheers
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