Not quite taxi driver!!!!!! I recently purchased the car at around 98000 miles on the clock and am a family man/research engineer. I think the recent chipping has increased the MPG by 4-5. The previous owner (a vehicle managment fleet) maintained the car well (FMBSH) so i feel the car is a peach. But you know, when i take the car for a nice and gentle ride around cambridge (when there's low traffic), i've gotten MGP readings like 45-48, average strolling speeed of 40ish, i don't know why but that damn pleasing!!!!!!!
anyhow that's my star for you!
anyhow that's my star for you!
GrahamC230K
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GrahamC230K said:
Now, my normal mileage from a tank wihout going into the reserve (52 litres) is about 310 miles or there abouts. This is driving mostly on flowing national speed limit roads in a pretty spirited manor, over taking and making as much progress as I can - ie lots of dropping down a gear or too and high revs.
So, although having tried before, I thought I would try again to drive for a whole tank of fuel conservativly and see just how many miles I could get.
So same car, same fuel, same journeys. However I adjusted my driving style to annoyingly sedate. Gear changes as low as possible - about 2500 rpm, with a 3000rpm limit - never went over 80mph (3000rpm in 5th), I drove smoothly as possible without braking and accelerating again etc. I even switched the AC which is on 100% to the EC position for some trips.
The result? I got about 320 miles - something I sometimes get driving as I normally would. I thought I mustn't have tried properly last time I tried this - but my car just doesn't like going slow!
Good really, no guilt for full gas max revs through the gears driving
D
Deleted member 2227
Guest
Currently I'm getting 310miles to the yellow light coming on with mixed driving often in rush hour ie 27mpg but have done a 33.3mpg driving very slowly(!) so in theory my car could, in perfect conditions and no traffic, and a following wind do 452miles . It will never happen.
Worse ever was 19mpg !!!!! Once only I promise!
Worse ever was 19mpg !!!!! Once only I promise!
D
Deleted member 2227
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Graham, are you saying that your car has gone from 270 to 310 since chipping?
glojo
Hardcore MB Enthusiast
minyak said:
My experience of Cambridgeshire is the flat fen land areas. Yorkshire and other areas have blooming great mountains that will easily see fuel consumption figures die.
Going downhill is more economical but the 'swings' do not negate the 'roundabouts' so I would expect to see more impressive figures from drivers who live in nice flat rural areas compared to drivers that have to continually either negotiate steep hills or inner city stop go motoring.
John
Guy
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E55 averaging 19.5 mpg over last 4k miles = 17.5 gals x 19.5 gives 327
but on the basis of this -
should be capable of 470 plus.
I have comfortably done Macclesfield - London return [380ish] twice now, [with speed limiter set at 80, cruising @ 75ish]. Traffic on the M6 usually plays havoc with the figures
but on the basis of this -
should be capable of 470 plus.
I have comfortably done Macclesfield - London return [380ish] twice now, [with speed limiter set at 80, cruising @ 75ish]. Traffic on the M6 usually plays havoc with the figures
GrahamC230K
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R2D2 said:
No. That's just how much variation I get depending on whether I am going for it, or really going for it!
I think fuel consumption is generally worse since the remap, but nothing too drastic.
glojo
Hardcore MB Enthusiast
GrahamC230K said:
Hi Graham,
Did you see Jeremy Clarkson drive 'conservatively' from London to Edinburgh and return on one tank of fuel, and is that how you drove in your 'conservative' attempt?
John
GrahamC230K
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glojo said:Hi Graham,
Did you see Jeremy Clarkson drive 'conservatively' from London to Edinburgh and return on one tank of fuel, and is that how you drove in your 'conservative' attempt?
John
Similar yes. I really was crawling. I mean you cant change up less than than 2000ish rpm without making the engine labour.
I was using the cruise control to stop any slight wavering of the throttle (I know Jeremy avoided cruise at times as he could control better).
I really don't understand. The C230K is suppossed to be the most fuel efficient petrol engine w202!
andy_cyp
MB Enthusiast
23/24 mpg, and thats been light footed
darent check fuel consumption after iv e been naughty.
c32 amg
darent check fuel consumption after iv e been naughty.
c32 amg
D
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GrahamC230K said:
Yeah I think my fuel consumption went down simply because I was driving harder after the chip was done. Conversely though I think if I drive like a saint I can get slightly better mpg because the engine is running more efficiently.
BTW. At my MOT CO2 was nil and ppm was only 17ppm!! so its running clean..
