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Surprisingly High MPG!!

Old Feb 3, 2020 | 10:58 PM
  #1  
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2015 C300 4Matic
Surprisingly High MPG!!

Went on about a 2 hour drive in my 2015 C300 4matic driving efficiently, and got the best mpg I've ever seen on the car! I think it is officailly listed as 31 mpg (with the newer ones being 34mpg) but my recent 38.5 mpg is crazy! In my experience, if I try to drive efficiently I get around 33 mpg on a long drive like this, and if I drive agggressively I get around 27 mpg on a similar drive lol. The car just passed 48.8k miles (got it serviced for 50k early) and I'm hoping to keep it a long while, cheers!




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Old Feb 4, 2020 | 02:05 PM
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2015 C300 4Matic Sport
I can get 30 mpg in C on the highway driving @ 70 MPH.
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Old Feb 4, 2020 | 02:19 PM
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‘15 C300 4M Sport, ‘20 GLC300
I’ve gotten mine to 36.3 on long highway drives.
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Old Feb 4, 2020 | 02:25 PM
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2015 C300 4Matic Sport
Originally Posted by GreekUPS
I’ve gotten mine to 36.3 on long highway drives.
What's E for? I never touch it.
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Old Feb 4, 2020 | 03:37 PM
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2016 C 300 4matic Lunar blue
E is for Eject-be careful.
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Old Feb 4, 2020 | 03:41 PM
  #6  
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2016 C300 4Matic
E= Ejecto-Seato cuzzz
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Old Feb 4, 2020 | 07:55 PM
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2016 C300 sedan
I've hit 39-40 mpg on long trips in economy mode.
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Old Feb 4, 2020 | 09:46 PM
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2016 C 300 4matic Lunar blue
I have a summer job which involves getting up quite early and driving for half an hour. Usually no traffic, few stops. If I keep it in E and set the cruise for 45, I routinely get 37 mph by the computer. I think the key is letting cruise be in charge, and not make a lot of stops and starts.
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Old Feb 5, 2020 | 02:32 PM
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1992 MB 190E, 2016 MB C300
I get 35 mpg @ 80mph using the cruise control.
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Old Feb 5, 2020 | 05:09 PM
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fbsdmd's Avatar
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2016 C 300 4matic Lunar blue
My car before the C300 was a GLA250 with FWD. The C300 gets better gas mileage.
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Old Feb 5, 2020 | 05:19 PM
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C400
I get about 32mpg in my C400 on the freeway. Impressive!
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Old Feb 7, 2020 | 01:45 AM
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2015 C300 4Matic
Wow!!! the performance step up from the c300 to c400 is huge and kind of has me wondering if I should've opted for the c400, that's quite good! The satisfaction of a v6 vs v4 doesn't compare lol. Personally, I would take an mpg hit any day for a 320+ horsepower vehicle! Regardless though, I honestly don't regret for one second jumping the gun on the c300. It's just a step above everything else in its class imo and makes my day every drive, which is enough justification for me!

Last edited by p.sam118; Feb 7, 2020 at 01:48 AM.
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Old Feb 7, 2020 | 10:30 AM
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2015 C300 4Matic Sport
Originally Posted by p.sam118
Wow!!! the performance step up from the c300 to c400 is huge and kind of has me wondering if I should've opted for the c400, that's quite good! The satisfaction of a v6 vs v4 doesn't compare lol. Personally, I would take an mpg hit any day for a 320+ horsepower vehicle! Regardless though, I honestly don't regret for one second jumping the gun on the c300. It's just a step above everything else in its class imo and makes my day every drive, which is enough justification for me!
i just want my sweet v6 sound back.
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