Member Since: 23 Nov 2006
Location: Aberdeen/London
Posts: 46
Fuel economy comparison
This will probably be stating the obvious, but it helped to hammer home the message to me....
Drove 150 miles this morning hard on the accelerator when ever overtaking, as a result 22mpg.
Return journey on the same route (same average speed), with snail pace acceleration, and I managed 32.9mpg.
This is the first time I have managed over 30mpg, and so I am very happy. In future I will reserve the foot to the floor for emergencies only.
5th Dec 2006 7:57 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73060
Drove to Surrey for the Fairmile meet last week, had plenty of time so sat at 60mph most of the way. Got 36mpg (according to computer). Got 33mpg for identical trip back. Is going west up hill or is that the headwind effect??
5th Dec 2006 8:28 pm
Ocsid
Member Since: 29 Nov 2005
Location: Hampshire
Posts: 255
kkqd0298,
Would be useful to know if your motor is an Auto or a manual transmission vehicle? I sense the penalties for pushing things are significantly more with the Autobox.
Last edited by Ocsid on 5th Dec 2006 9:26 pm. Edited 1 time in total
5th Dec 2006 8:31 pm
kkqd0298
Member Since: 23 Nov 2006
Location: Aberdeen/London
Posts: 46
It is indeed an auto, TDV6. I wonder whether using the manual? shifting on an auto box (the bit next to the sport mode on the shifter) would help at all?
I was so proud of my 32.9mpg that I kept on going on about it at dinner. I have a London to Aberdeen trip on monday so I will see what I can get on that.
I have noticed that at 60mph there is no wind noise, at 70 it is audible, and at continental speeds I do have to turn up/off the radio. For aberdeen I will try to keep the speed between 60-70 to eek out every extra mile.
It seems like I am turning into a miser when it comes to buying fuel. But being 27 and having really streched to buy the car in the first place every extra mile out of the tank really counts. Going from a range of 400miles to over 600 has generated a huge smile on my face. But it has got me thinking.....what can I do to reduce the weight of my Disco? Would carbon fibre panels help, or would it just look like it crashed into halfords?
5th Dec 2006 8:52 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73060
He's and I'm auto, hover your mouse over his mini D3, tells U the spec. 8)
5th Dec 2006 8:54 pm
Ocsid
Member Since: 29 Nov 2005
Location: Hampshire
Posts: 255
Thanks for the tip DSL; I learn everyday here.
kkqd0298, I cant better the autos own selections re economy by using "Comand Shift" but I would like to know how you get on. Cheers Ocsid.
5th Dec 2006 9:52 pm
Winger Site Moderator
Member Since: 15 Feb 2005
Location: UK
Posts: 3428
DSL wrote:
Is going west up hill or is that the headwind effect??
The impact of wind direction/speed on MPG is considerable - akin to the comments in this thread about the difference between sporting and sedate driving. A 25mph headwind will have a very obvious effect.....
The figures your 'puter indicated look a tad optimistic to me.............
5th Dec 2006 10:24 pm
simkna
Member Since: 21 Feb 2006
Location: Leicester
Posts: 806
I've yet to break 30mpg regardless of how slowly and carefully I drive.
Must be the chip.
Si.Pat's Van
D3 TDV6 S Auto
Rimini Red / Alpacca Leather
6th Dec 2006 12:07 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73060
Winger wrote:
The figures your 'puter indicated look a tad optimistic to me.............
Been following computer figures by putting the actual fuel used into excel & calculating actual mpg. Unfortunately for the Fairmile run I'm still on the same tank of diesel so haven't worked out the actual yet, the rest of the tank had been used up locally so mpg is going to Hell in a handcart but still over 31! The trip mpg tended to be about 5-7 % optimistic before the enhancement, now it is only a percent or two out so not too unreliable. In my wife's D3, mostly used for short trips locally & offroading, the display is rarely over 22, often under 20.
6th Dec 2006 12:19 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73060
simkna wrote:
I've yet to break 30mpg regardless of how slowly and carefully I drive.
Must be the chip.
I'm sure the fish will not be doing it any good either!
6th Dec 2006 12:20 pm
LHD
Member Since: 05 Apr 2006
Location: Lugano area
Posts: 689
over about 5'000km (since I last reset the computer when we drove to England), we are stuck absolutely spot-on 10 litres/100 km. Thats 28.25mpg in your money
That's including some plodding at 80kph and some hill climbing on several mountain passes.
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15261
With 61k miles on the clock, much of this is Motorway [I travel througout the UK]. My motorway speeds are between 70 & 80 mph [overspeed warning is set at 75mph]. I never thrash the D3 and overall consumtion is 27.1mpg [I used to get *28mpg when it was newer]. However when I travel locally around country roads, mpg drops to around 22.6 mpg...not good news for a Tight North Yorkshire Scot!!
*Anybody else notice MPG was higher when new compared to now [and no, I don't reckon its becasue you think you take more care of your new baby]...conversely.. I used to have to top up engine oil several times when new [up to first service], since then I've not had to add a drop???
Any explanations???
.....
...... always on the road less travelled 🚧
6th Dec 2006 2:08 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73060
ronp wrote:
I used to have to top up engine oil several times when new [up to first service], since then I've not had to add a drop???
Any explanations???
How about you're a:
ronp wrote:
a Tight North Yorkshire Scot!! :
The best kind of Scot!
6th Dec 2006 2:41 pm
ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15261
DSL your gallery of Boughrood looks as if it was great fun...but 4.8 MPG!!
...... always on the road less travelled 🚧
6th Dec 2006 5:15 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73060
Great fun it was, just been out washing Mrs DSL's car to get it back to the way she likes it, clean with road tyres! Re the low mpg, I reset the trip at the start so that is just off roading. Mossy's V8 got 3.6mpg, again trip reset so just off roading. Here's a better one but I ran out of downhill coasting!
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