Member Since: 06 Jan 2005
Location: Patching, Sussex
Posts: 15496
Using the CC will hurt your economy, as BN described keep the engine a 2,000 revs accelerate gently and brake gently. I have to say I don't have a very light right foot though. My parents D3 doesn't get the same economy but it only tends to do short journeys.DS3 TDV6 HSE - Silver with Alpaca (old one) Gone
DS3 TDV6 HSE- Silver with Alpaca (new one) Gone
D4 HSE Lux - Montalcino Red Gone
Porsche Cayenne V8 Diesel S
18th May 2006 3:04 pm
LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23369
I've just found the scrap of paper with all the figures on it. I used 68.11 Litres over 383 miles (as described earlier). Hope my maths is correct!
Albourneboy, try doing some precise manual calculations, could just be your computer is lying!
Must admit, that's the one thing I haven't done as yet so I'll keep some records over the next few fill ups. I'll also do as Pelyma suggests, keep around 2000 rpm and lay off the CC for a while and see if that makes a difference. Other than that, I always accelerate and brake gently so I don't see what else I can do to improve things (other than the TurboChip upgrade)Now an ex-D3 owner after 7 happy years. Miss the car but not the big bills
Still regularly seeing 30MPG in my (TC'd) 06SE Auto. After 4000 miles the highest figure has been 34 on a 200 mile run. Lowest has been 24 with lots of town driving and cruising at 100 on Mway!! If anybody in uniform asks questions of this, I will say that I meant KMH...... 8)
Despite the TC treatment, I think I'm still running the old software (I have the pre-heat menu). I will be looking for all the patch upgrades and a TC re-installation on the first service and I hope to see even better economy after that.
What are you guys doing to get MPG in the low 20's I'm not renowned for driving like a grandad and my pedal regularly sees the metal.
18th May 2006 3:30 pm
LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23369
If possible use the same pump, let's hope it's your computer. If not, I don't know what to suggest, I use c/c on the motorway.
Are you sure??? I use CC all the time and everybody I know with any knowledge of engines says CC will only improve economy.....
18th May 2006 3:33 pm
Buckingham
Member Since: 08 Mar 2006
Location: Hampshire
Posts: 957
I reset every 1000 miles...
I am currently getting 26.8mpg after 540 miles made up of commuting to work on country roads, a run down to the coast on mostly A roads and about 150 miles of towing 1800Kg....
My last 1000 finished at 26.9mpg after similar driving...
The amusing thing is, a quick burst on the accelerator can drop your comsumption quite dramatically very quickly, but you need miles and miles of driving like a pussy cat to get it back up again....
18th May 2006 6:23 pm
Tim in Scotland
Member Since: 27 Jun 2005
Location: All at sea
Posts: 496
JMC, like you I use the CC at every opportunity but there are times when I can actually drive the car better than the CC. Especially on long uphills where the CC holds onto 6th gear and (on my Sport) suddenly drops down to 4th and sends the revs through the roof and knackers the economy.
I had the ECU reprogramme almost a month ago and it made a big difference to the economy - it went from 23/25 mpg in local driving in the Central Belt to 28-30mpg and 32-33 on a long motorway haul. I try to avoid using the Sport setting of the command shift and will shift manually instead. I have also found that with the Sport it will not shift up to 6th below 55mph/2000 rpm unless I manually select it, and then it will stay there all the way west across the Carse of Stirling to home. If I leave it in D then I have to get up to 55-60 before it will shift up.
I will have to "teach" the gear box all over again from tomorrow as the car has been in the dealer this week for it's first service and having all the latest ECU upgrades done.
I remember a couple of years ago TG did an economy run with Clarkson driving an Audi A8 TDi from London to Edinbugh and back on a single tankful and found that he could drive the car much more economically using his right foot than the CC and ECU could.Now a disillusioned new Land Rover buyer and have jumped ship to something less expensive and more reliable that hugs trees.... now driving a Mini Countryman PHEV as well as my trusty and brilliant 1996 Epsom Green Defender90 Tdi300
18th May 2006 6:36 pm
Ray_of_Sunshine
Member Since: 25 Apr 2006
Location: Fife
Posts: 38
Tim in Scotland wrote:
I remember a couple of years ago TG did an economy run with Clarkson driving an Audi A8 TDi from London to Edinbugh and back on a single tankful and found that he could drive the car much more economically using his right foot than the CC and ECU could.
I remember that he also filled up with fuel in the wee early hours of the morning when the tempature was at it's lowest as you get more fuel for your money. Do think I would go to that extreme though, but I wonder how many people actually fo just that.1998 Isuzu Trooper 3.1DTi SWB Commercial *Fir Green (Mica)*
It's my parents not me who have a D4 SDV6 Landmark
18th May 2006 8:13 pm
TonyH
Member Since: 01 Mar 2006
Location: Market Drayton, Shropshire
Posts: 211
Calculated on actual fuel usage from new over the first 1405 miles of careful driving on mixed road types, some city, but mainly A & B roads has returned 27.7 mpg.
From other postings, this does not appear to be too bad for an auto, however, I do concentrate on keeping rpm below 2,200 and typically in the 1500 area wherever possible. I have also found that at typically 50 mph the gearbox generally engages 6th gear or can be command shifted into 6th. This reduces rpm to an optimum level and I suspect that this combination must return maximum fuel consumption.*Disco3 7-seat Auto
March 2006
Zermatt silver
*Disco TD5 GS Manual
2001
Epson Green
108,000 miles without a single problem
*Disco TD200 Manual
1993
Bonatti Grey
55,000 trouble-free miles
*Various company cars, no comparison
18th May 2006 8:56 pm
nwoods
Member Since: 04 Apr 2006
Location: Southern California
Posts: 563
Yes but don't forget the price difference between a gallon of diesel here and a gallon of petrol where you are Zermatt silver 06 reg.
Gone but not forgotten !!!
18th May 2006 10:17 pm
simkna
Member Since: 21 Feb 2006
Location: Leicester
Posts: 806
I'm across in the States at the moment, and the guys over here can't quite figure why I have no sympathy for them whingeing about their $3 a gallon gas prices. (don't know they are born, etc. etc.)
Si.Pat's Van
D3 TDV6 S Auto
Rimini Red / Alpacca Leather
18th May 2006 10:26 pm
nwoods
Member Since: 04 Apr 2006
Location: Southern California
Posts: 563
Cliff H wrote:
Yes but don't forget the price difference between a gallon of diesel here and a gallon of petrol where you are
You have a point, but our petrol did go up nearly a third within 6 weeks of buynig my D3!
18th May 2006 11:32 pm
Tony
Member Since: 20 Apr 2006
Location: Adelaide Hills
Posts: 183
Petrol V6, over 6000km. including about 1200km towing a camper van, average is 14.6l/100km. (?about 19.3mpg??), mostly country driving.
Don't forget, US gallons are smaller than Imperial.Ex Defender 110 200Tdi owner.
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If anybody in uniform asks questions of this, I will say that I meant KMH...... 8)
I'm not renowned for driving like a grandad and my pedal regularly sees the metal. 
