What kind of mileage do you typically get per tank?
What is your per tank mileage like?
I'll add my best has been 750KM all highway driving london -Mississauga pit stop on lakeshore- Ottawa.
Pretty good on gas for a 4Matic
Before that I had a VW Passat TDI (diesel), it averaged 44MPG in the same conditions. Then I got hit by the VW cheat scandal and they bought my car back, the money from that got me my current C300.
I'm catching myself ever so often comparing these two cars. Obviously they have a very different brand recognition, but still, the Passat was VERY roomy, it had full voice control for phone, media and navigation, with Apple Car Play and Android Auto, had great MPG – and a torque from the 2l diesel engine that was almost comparable to my V6 that takes twice as much fuel.
Oh my ... I know ... I should forget the past and enjoy the present.
Last edited by herbert68; Jul 6, 2017 at 11:04 PM.
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Before that I had a VW Passat TDI (diesel), it averaged 44MPG in the same conditions. Then I got hit by the VW cheat scandal and they bought my car back, the money from that got me my current C300.
I'm catching myself ever so often comparing these two cars. Obviously they have a very different brand recognition, but still, the Passat was VERY roomy, it had full voice control for phone, media and navigation, with Apple Car Play and Android Auto, had great MPG – and a torque from the 2l diesel engine that was almost comparable to my V6 that takes twice as much fuel.
Oh my ... I know ... I should forget the past and enjoy the present.
C250 Coupe. My best three tanks validate M71's (Bold/Underlined) above....................
34.9, 36.3 AND 36.5. All highway. All relaxed. First was in California. Second and third were in Arizona (better fuel).....................
Average - per Fuelly.com - for 9160 miles is 28.7
all the best, ez
Last edited by ezshift5; Jul 7, 2017 at 09:41 AM.

. I've gotten 30 on the highway doing 70-80mph. then again compared to my previous car which was gas I got up to 40mpg 30% city/70% highway....
With that said, its very common to get an average of 25 miles per gallon with mixed driving, which means 400 miles per tank if you fill @ empty with 1 gallon remaining.
FWIW, I did my own extensive testing for the first 2 years of ownership and have now accumulated 80k miles on my C350 and I'm still getting consistent results.
P.S.
According to my fuelly records, in my first 2 years of ownership I logged in 25,327 miles of which my overall average MPG is 25.8, and the best tank MPG is 28.26. The most gallons I've filled without running out of gas (and yes, I have ran out of gas testing the limits) is 16.489 gallons. The most miles I recorded without running out of gas is 446.50 miles where I used 16.071 gallons (27.78 tank MPG with an average speed of 48 MPH back in 2/22/14).
Call me crazy, but I finally stopped recording after tank #65 so I can start having fun.
Last edited by edgalang; Jul 7, 2017 at 08:52 PM.
The best I've gotten is 6.8 l/100km, that's 34.5 mpg. That was with almost no city driving.
I'm driving a 2008 C180 Kompressor. My first Benz. Very satisfied with it, coming from a 2004 Volvo V40 2.0T.
Last edited by gianton; Jul 13, 2017 at 02:02 AM.
I had strong tail wind going there and averaged 30.2 MPG, at an average speed of 64 miles per hour. That was the best MPG I've had so far with this car.
On the way back I had stiff headwind and averaged 28.3MPG, at an average speed of 63 mile per hour.
The ride was very pleasant and relaxed. But I'm not impressed with the fuel economy, not for a rather small 2014 car.
I had strong tail wind going there and averaged 30.2 MPG, at an average speed of 64 miles per hour. That was the best MPG I've had so far with this car.
On the way back I had stiff headwind and averaged 28.3MPG, at an average speed of 63 mile per hour.
The ride was very pleasant and relaxed. But I'm not impressed with the fuel economy, not for a rather small 2014 car.
Recently on a round trip from Boston to Quebec city. I got an average of 28.6 mpg with average speed of 72 mph.
Diesel obviously yields better fuel mileage. I'm fairly certain this is a fact that we can all agree on.
So just fill your cars with diesel. #instawin....
I don't know how you get 450 miles! Thats crazy.. all highway?



I don't know how you get 450 miles! Thats crazy.. all highway?
90% highway. Time to fill up again. The light came on at 430 this time. I'm currently at 455 and could go another 30 miles, I bet. Should I go for it? lol




