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[Mechanical] Poor Fuel Consumption (TDV6)
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Disco_Mikey
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Member Since: 29 May 2007
Location: Dundee, Scotland
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Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

My theoretical range (miles covered + miles remaining) has hit 700 a few times. Generally hover around 550-600 though
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Post #139806730th Dec 2014 9:19 pm
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Robbie
 


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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

I've managed 550 miles and usually fill between 470 and 520 miles. No way could I manage 600, let alone 700+.
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Post #139806830th Dec 2014 9:22 pm
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Disco_Mikey
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Member Since: 29 May 2007
Location: Dundee, Scotland
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Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

I never get that, as its really, really dull sitting at those speeds. Silly head normally goes on at some point during the 500 miles in that tank, and the MPG drops like a stone Laughing
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Unit 3, 42 Baird Avenue
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DD2 3TN

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Servicing + Repairs / Autobox Flushing / Fault Diagnostics / EU3+EU4 EGR Blanking / Timing Belt + Oil Pump Replacement

Software Updates+Upgrades:
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Post #139807030th Dec 2014 9:23 pm
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ashley
 


Member Since: 29 Dec 2014
Location: Steel City
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United Kingdom 

Robbie wrote:
A real 40mpg or a displayed 40mpg??


Displayed MPG only and only ever on decent motorway journeys of 100+ miles with long yawn inducing speed restricted stretches. I suspect the OBC is optimistic but not by huge amount.
  
Post #139808230th Dec 2014 9:39 pm
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Robbie
 


Member Since: 05 Feb 2006
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

I think you need to do some brim-to-brim calculations.
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

Diagnostics for:
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Post #139808430th Dec 2014 9:42 pm
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GLYNNE
 


Member Since: 06 Oct 2006
Location: KENT
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England 2012 Discovery 4 3.0 TDV6 Commercial Auto Orkney GreyDiscovery 4

Embarassed when I fill the tank it says I have 324 before refill Crying or Very sad

If only SWMBO didn't use it Whistle
  
Post #139809130th Dec 2014 9:49 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Kent
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United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

Only owned mine for 2 weeks and so far commuting shows 24 mpg and long run 30 mpg, obviously need to be adjusted by 10 percent ish like most obc.
  
Post #139809830th Dec 2014 9:54 pm
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urhunden
 


Member Since: 15 Jan 2010
Location: Stockholm
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Sweden 2008 Discovery 3 TDV6 HSE Auto Tangiers OrangeDiscovery 3

My obc shows around 11 l/100kms but the real figure is around 14 l/ 100 kms = 20mpg.
And I understand it is not possible to adjust the obc.
My TDV6 auto is tweaked with a new setting from Bell. Also have a larger intercooler.
Do not understand how people can get around 10l/100kms = 28 mpg.
I am not heavy on the throttle.
What is wrong?
  
Post #139810630th Dec 2014 10:01 pm
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d.lundigan
 


Member Since: 15 Sep 2013
Location: Essex
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United Kingdom 2005 Discovery 3 TDV6 HSE Lux Auto Cairns BlueDiscovery 3

Well after reading some of this thread I think I have problems, My display has never gone above 22mpg and has sat at 21.7mpg for the last few months and since the display over reads by around 2mpg that's 19.7mpg. On the last tank fill my trip said 324miles ouch not sure if it's because it's mainly short local runs to and school,shops ect. Here's hoping it's better on the motorway Big Cry . Not sure what else I can do as I have EGRs blanked, run 2 stroke, check tyres every 2 weeks, new intercooler hoses and hawk eye 4 wheel alignment with hankook road tyres. Rolling Eyes
  
Post #13995452nd Jan 2015 7:58 pm
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anglefire
 


Member Since: 09 Mar 2010
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England 

Short runs to/from work and I get about 18mpg - on a motorway run is does get mid/high 20's depending on the traffic etc.

Long term average on mine is 24 (110K miles) which includes off-roading and towing.
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Post #13995502nd Jan 2015 8:03 pm
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Kummu24
 


Member Since: 16 Feb 2013
Location: Ayrshire
Posts: 213

Scotland 2005 Discovery 3 TDV6 SE Auto Adriatic BlueDiscovery 3

strangely enough my brim to brims and my fuel computer work out identical and have done so many times. So I am reasonably confident in the numbers it displays. My mileage had also seemed stuck at 21.8 for months when I was running my ATR's. Just changed to Scorpion winters and it seems to have improved by about 1mpg over about half a tank. In summer on ATR's I was around 25 ish. Thats mainly on short runs and a 12 mile run to work each day. If I go a longer run (30 miles) I'll get up to 27 and on a 60ish mile run I can just top 30 (driving conservatively)
  
Post #141442525th Jan 2015 11:33 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Kent
Posts: 3415

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

Last week as getting more at home with the D3 have been giving it more beans and the mpg has improved to 23.75 so up 1mpg Very Happy
  
Post #141442825th Jan 2015 11:36 pm
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galwaygreen
 


Member Since: 30 Oct 2011
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United Kingdom 2016 Discovery 4 3.0 TDV6 Graphite LE Auto Loire BlueDiscovery 4

dosnt matter...gas cheep as chips just enjoy while we can
  
Post #141446226th Jan 2015 2:02 am
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Kent
Posts: 3415

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

Have you seen the price of chips down Kent?
  
Post #141446426th Jan 2015 2:05 am
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Ja92mie
 


Member Since: 16 Sep 2014
Location: Newquay
Posts: 678

United Kingdom 2005 Discovery 3 TDV6 SE Manual Java BlackDiscovery 3

Does cruise control play a part in this? Is it better to have it on or off? I do remember reading somewhere people saying they get worse MPG with it on! Shocked
  
Post #141448726th Jan 2015 8:28 am
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