Real world MPG GLD 450 vs 550.
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E55, GLS450, GL63, GLE350
Real world MPG GLD 450 vs 550.
Pondering which one to get. Love the looks of the 550 but concerned the MPG will be too poor. Let me know your results.
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From: In my garage
E55, GLS450, GL63, GLE350
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From: Chester Springs, PA
2017 GLS 550 & 2016 SLK300
Drive from PA to MO and couple weeks later back from MO to PA. Late Aug, truck full of stuff each direction.
Hell of a cruiser that is fun to drive in stop in go as well (using distronic).
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MBWorld Fanatic!
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From: In my garage
E55, GLS450, GL63, GLE350
Good to see everyone getting better than EPA MPG estimates. The 450 clearly gets better mileage but the 550 looks even more amazing and has the more powerful engine. This is going to be a difficult decision.
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From: WI
17 E43; 21 GLS580
The 550 tops at 21mpg highway at around 70mph, I take a lot of loooong trips. I avg around 16 mpg too in mixed driving. Would not trade for a 450 for any reason. It has a ton more power, handles a lot better (active roll bar), brakes better and rides plushly. You do pay a lot more but once you factor in allthe standard equipment you end up paying about 10k for a lot more engine, better suspension and much better brakes in that light it price is more than justified.
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From: WI
17 E43; 21 GLS580
The city is definitely not friendly to the 550. However the 450 would probably only provide 2-3 mpg under the same conditions. To get any decent milage on the GLS takes diesel and even then its nothing to write home about. It will be interesting to see how the new 450 mild hybrid works out. Its hard to make 3 tons "green".
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2019 Porsche GT3, 2013 Mercedes G550, 2024 Ford F150 Raptor, 2024 Tesla Model Y
The city is definitely not friendly to the 550. However the 450 would probably only provide 2-3 mpg under the same conditions. To get any decent milage on the GLS takes diesel and even then its nothing to write home about. It will be interesting to see how the new 450 mild hybrid works out. Its hard to make 3 tons "green".
It's hard to compare with others simply based on how people calculate their mileage and driving styles, city v highway, etc. Anyways, love the 550.
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Joined: Aug 2003
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From: In my garage
E55, GLS450, GL63, GLE350
Got the GL63 in a few days ago. Love this truck. It does things that a vehicle this big should not be able to do and is a total blast to drive. When the warranty is up, I plan to add an ECU tune or do a turbo upgrade. Last GL I purchased was a 2007 GL450 in 2007. This is a quantum leap in terms or power, luxury, and handling. The 63 is an ethereal driving experience. I highly recommend it.
