cntlaw

Some observations:

E320 has nearly the same fuel consumption as the C320 as shown on the spec. - this is true

Litre per 100km:
C320 - city - 16.7, extra urban - 8.2 , combined - 11.4
C55 AMG - city -17.8 , extra urban- 9.2 , combined 12.3

In HK , we could never have enough highways to achieve "extar urban" 's figure. The "combined" is best we can do.

Experience on my ex- E320 is
city:15-16
combined - 11-12.5

Experience on my C55 is
city: 17-20
combined - 13.5-14

So I would say the C55 consumes
25-30% more fuel at city traffic jam
20% more fuel at my normal day drive
comparing my ex-E320.


cnt

cnt

moa4r

wierd how v8 and v6 have almost the same consumption,, and you're actually doing better w/the v8... e320 is heavier though, that may have something to do w/it

djx18

I get 242 miles per full tank with my C55. This is highyway city and urban driving.

Whitey

I believe his measure is "volume (of fuel) per distance", not "distance per volume" (as it is commonly used on this board). Not surprizingly he's actually doing worst with the V8 and wider tires. However, that's surprisingly close to the E320 W210, which could just be explained by a more advanced, more efficient engine

Mods can be done to get better fuel economy anyways - I've certainly gotten 10%+ improvements with mine, I think his W210 was stock as a rock.

cntlaw

Actually , my wife told me she did 11.4 litre per 100km this morning as her journey to work is 22km with little traffic and 80% highway. So this figure is better than 13.5 combined which I did the other day.

Be aware that in Hong Kong, our highways are not like USA , we still have jam on highway :p


cnt

cntlaw

Ha ha , 'almost the same' , if you know the cost of fuel in HK comapring with USA , then it is not quite 'almost the same'

e320 is not that heavier than the C55 , it is about 100kg more only.

thanks

cnt

Whitey

I believe the same could be said about the US too..........

AMG FANATIC

CNT, it is quite interesting, I'm getting almost the same fuel consumption with my C32 as with your C55. Most of my driving is also in town, with a bit of highway driving. For the last 4000 or so km, my consumption is 13.3 l/100km, that is about 17.5 MPG for you US guys.

cntlaw

That is a VERY good record for your C32 comparing the time with my ex-E320.
I am not sure if I can maintain 13.3 on average with the C55. It will take me a while to keep track of the new readings as E has a much bigger fuel tank than the C. I heard that C55 owners can do 200miles per tank which is 300 km .....

Not sure if I remember correctly of the tank size, I need to get below formula right

E320 - 80 litre tank capacity - I can do ~450km
C55 - 62 litre tank capacity - 300km ?



cnt

cntlaw

based on djx18's data


his C55: 62 litre tank capacity: 242 miles = 363 km
My ex-E320: 80 litre tank capacity: 450km

can someone verify above ?

cnt[/QUOTE]

FrankW

my sis CLK320 can do 27-28mpg on the freeway, mine does 22mpg on the freeway. we have the same 16.4 gallon tank, go figure.

moa4r

ok, I was totally off in everything i said... how did you improve your fuel economy on your e320.... wider (and much heavier) wheels and tires made a noticable difference for the worse. with all stock, I cant do better than 15-17 mpg in mostly city driving, which is pretty bad IMO

cntlaw

I guess entirely 'driving style' of the two cars did make a lot of difference!

cnt

cntlaw

Some discovery...yesterday..
I been going to work on the same road (Lung Cheung Road , 25km , 80% are up down hills ) at speed of average 70-80kmh where I was driving the C55 with a even more gentle style than the E320 in order to reduce uncomfortness due to C55's much harder suspension.
The fuel meter shows 11.8 litre per 100km after 25km drive !! That is 10-12% more fuel than my ex E320.!! Not bad at all.


cnt