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SLK350
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Discussion Starter #1
It would be interesting to know if anyone is actually achieving the published MPG. I would set up a poll except I dont know how to do it. The combined figure of 26.6 for a 350 manual is beyond me, and I am running it in so doing fairly low revs. Since it depends on engine size, transmission and driving style dont know if the poll will mean much, but still.. anyone want to set this up?
 

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R171 SLK200 2005
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475 Posts
Going from the fuel mileage I get on my current R170 SLK, a poll like this could be OK:

Under 16.9
17.0 - 17.9
18.0 - 18.9
19.0 - 19.9
20.0 - 20.9
21.0 - 21.9
22.0 - 22.9
23.0 - 23.9
24.0 - 24.9
25.0 - 25.9
26.0 - 26.9
27.0 - 27.9
Over 28.0

Or should 28.0-28.9 and 29.0-29.9 be added as well??
 

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SLK 350
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2,327 Posts
I think that a really informative poll would differentiate between the 200K, 350 and 55. Perhaps it would be too involved but it would be more usefull.
 

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R171 SLK200 2005
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475 Posts
Duo-Art - 3/12/2005 3:55 PM

I think that a really informative poll would differentiate between the 200K, 350 and 55. Perhaps it would be too involved but it would be more usefull.
The only way to do that, would be to set up three different polls for each car - makes sense really!!! [:D]
 

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BMW
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900 Posts
joyfulheart - 3/12/2005 3:42 PM
The combined figure of 26.6 for a 350 manual is beyond me, and I am running it in so doing fairly low revs.
That doesn't sound all that good. I get 26-27mpg average from my E320 which is a lot heavier and has an automatic gearbox. You should find it improves as the engine loosens up over the first few thousand miles. In any case, if you are in London traffic a lot and getting anywhere near 26.6, that's quite impressive. A lot depends on your driving conditions. Low tyre pressures can have a dramatic effect on fuel consumption, too.
 

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R171 SLK200 2005
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475 Posts
steve-p - 3/12/2005 4:05 PM

Also it would need to differentiate between imperial gallons and US gallons.
Oh good grief - nothing is simple anymore!!! [;)]
 

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slk 350
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I get, on average 26 to 27mpg with my 350 (auto). Done 2500 miles. Best I've got on my 20 mile trip home from work is 30mpg. 15 miles of not too crowded 70 mph 'A' road and 5 miles of urban. Gentle on the brakes and gas[:)]
 

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SLK350
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693 Posts
Discussion Starter #10
Well I just got 15 MPG over 75 miles.

Cost £20/ 28 Euros/$36 for 75 miles is pretty poor for ordinary town driving.

This is real cost, just filled up for a long journey today, 75 miles since last fill up. I was heading for about 190 miles for the whole tank including reserve.
 

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SLK 350
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378 Posts
my average from new is 25.6 mpg. - 3200 miles.

if you want to get better mpg at low speeds, ie doing 30mph without a lot of stop start, 5th and 6th gears will more than take it, you will also get about 28-29mpg as well.

Then you watch it go all the way down to the low figures when you floor it. Especially in 2nd gear when you hit the limiter (its 5000rpm in the lower gears).
 

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SLK350 2005
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SLK350 (2005) with 7-speed automatic in Canada

I drove 6700 km since new and observed these consumption figures:

12.23 litres/100km (or)
23.1 mpg imperial (or)
19.2 mpg US

In Canada gas stations correct the amount of gas dispensed nto 15C temperature, this could mean consumers sometimes get short changed.
 

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SLK350
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I'm driving a SLK350 manual and have achieved the following mpg figures (from exp):

City (usual): 16-18mpg
City (hard): 14mpg
Highway (usual): 22-23mpg
Highway (long trips, nonstop): 26-27mpg

I actually achieved 27.8mpg from San Francisco to LA even through hills, and I was going between 75-90 the entire time with the A/C off and top down.
 
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