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Drove 340 miles today in my C230 Coupe. I got 34 miles per gallon. It was 90% interstate. My best prior to today, on this same route, was 29. My worst was 24. What I did differently today was: use the cruise control and stick to the speed limit. It made a big difference. I support our troops and I'm going to do everything that I can to reduce our dependence upon foreign oil. No more blood for oil. Oh, and did I mention that I got a $160 speeding ticket on Sunday?
 

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2013 ML350, 2004 ML350
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335 Posts
two responses

WHOA [8D] and OUCH [:0]. Kinda makes me want that Lorinser C Coupe that CEC has for sale (make up for the extra mods in gas savings) and man, you're like MHPHOCKEY... getting caught is nnoooo fun
 

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2003 c230 Kompressor Coupe
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5 Posts
my record is 39 on just a sixty mile drive that is all expressway! i used cruise control around 65 and brought it down to about 53 for the last ten mins!

if you really wanna boost it, add some luca's formula to your gas tank. you can pick it up at any auto store, and it definitely pays for itself!!!
 

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2004 C230 Kompressor Sport Coupe
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1,903 Posts
I have seen the indicator break 40, but it was down to 38 by the end of the trip. I was going the speed limit to 5 plus, just flowing with traffic, no crazy techniques. The M271 can do great. Pity the city mileage is so meh.
 

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2002 C32 AMG
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1,771 Posts
I average 30 highway, but I have also seen it reach past 45MPG. That is only on a slightly declided highway though...
 

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04 C230K SS
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176 Posts
I put about 21k miles on my car in the first 6 months I had it. Numerous trips from North Carolina to the midwest. I averaged around 35mpg overall but had some stints up to 38. (over the full gas tank, not just a few miles). Have any of you checked actual mileage vs the digital readout? Mine consistently reads 1-2mpg higher than actual.
 

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2004 C230 Kompressor Sport Coupe
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1,903 Posts
Mine is pretty consistently 1 mpg high. I will average 26 on a tank and have it reading just over 27, for instance.
 

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2006 C280 4Matic
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209 Posts
i've driven about 500 on a full tank jersey to newport, va and back that's a 480 mile trip...and i could still go another 40 miles...but i cut that in 1/2.....got gas when i pulled back into livingston
 

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2005 C230 Kompressor
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50 Posts
Mine seems to be optimistic by 0.6mpg to 1 mpg. Since new, tankfuls ranged between 31mpg and 34mpg (hand calculated). That's mostly on a 170 mile/day RT commute on highways and freeways, usually between 50mph and 75mph (computer says I average 57mph-60mph).
 
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