2020 GLE450. What are you guys getting MPG on highways
I want to know what MPG are you guys getting at cruising speed 75-80 mph with the GLE450 and have any of you guys gotten more than 500-550 miles on a tank with 90% highway driving? I love my 2015 X5d but its getting old with 95k on the odo and want to replace it but the torque and the MPG is amazing at 31 mpg highway,
I want to know what MPG are you guys getting at cruising speed 75-80 mph with the GLE450 and have any of you guys gotten more than 500-550 miles on a tank with 90% highway driving? I love my 2015 X5d but its getting old with 95k on the odo and want to replace it but the torque and the MPG is amazing at 31 mpg highway,




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You will find you will spend more on fuel compared to the diesel engine.
The Best of Mercedes & AMG
Still better than my Infiniti QX60, which got about 19 mpg over the course of five years, driven largely in eco or standard modes.
The EU uses RON Octane, and US uses AKI Octane (The average of RON and MON, (R + M) / 2)
So a 98 Octane in EU (RON) = ~88 MON = ~93 AKI in US
As for gallon, the UK gallon is equal to US gallon * 1.2009499, which means the MPG will looks higher in UK than in US
The EU uses RON Octane, and US uses AKI Octane (The average of RON and MON, (R + M) / 2)
So a 98 Octane in EU (RON) = ~88 MON = ~93 AKI in US
As for gallon, the UK gallon is equal to US gallon * 1.2009499, which means the MPG will looks higher in UK than in US
Last edited by Philamg; Dec 13, 2019 at 03:14 PM.




Thank you so much for posting this! So based on my experience on the older 2010 Ml350 gas which got 460 on a tank at 20 mpg and 26 gallons tank and the 2013 ML350 Bluetec at 27 mpg highway and 26 gallon tanks getting 600 plus on a tank and my current 2015 X5d which gets 31 mpg highway and plus 600 miles on a 22 gallon tank, I can safely assume the new GLE450 will get 25-26 mpg highway with good tire pressure (20 inch AMG rims) with 22.5 gallon tank assuming I fill up at the 21 gallons mark I should get 530-540 miles on a tank for work commute Mon-Fri. I have a 2016 Audi A7 on the side which is weekend only and trading that up for a new 2020 Audi RS7, WOOT.







