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Poor Fuel Economy
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Aussie D3
 


Member Since: 12 Jan 2006
Location: Sydney
Posts: 1

Australia 2005 Discovery 3 TDV6 SE Manual Cairns BlueDiscovery 3
Poor Fuel Economy

Hi All,

Our D3 TDIV6 has not lived up to Land Rovers published data on Fuel Economy.
Land Rover Urban L/100km: 11.5 - We are getting on average 15.5
Land Rover Extra Urban L/100km 8.2 - We are getting on average 10.9

We have taken the vehicle to the dealer, but they state there is nothing wrong??

Any assitance would be helpful.
  
Post #3716412th Jan 2006 12:41 pm
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Smarticus
 


Member Since: 01 Jan 2005
Location: Northumberland
Posts: 655

2010 Discovery 4 3.0 TDV6 HSE Auto Ipanema SandDiscovery 4

In the UK Land Rover quote overall fuel consumption for the D3 at 30 MPG. I dont know anyone who gets close to that. The manuals seem to average about 27mpg and the autos about 23 mpg (plus or minus 2mpg depending on conditions). Afraid the manufacturer's figures are simply wrong (arguably mis-selling !) and we need to accept that moving a vehicle of this weight is going to burn a lot of fuel.
 Disco 4 TDV6HSE
Defender 200TDi CSW
RR Evoque 
 
Post #3726512th Jan 2006 11:33 pm
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Slimer
Site Moderator 


Member Since: 06 Jan 2005
Location: Last Exit to Nowhere
Posts: 16295

United Kingdom 

During the warmer weather (I don't think we really get hot weather over here Wink ) I averaged 28-30 most of the time and achieved over 32MPG on long runs. Since the colder weather has set in and the FBH is getting a lot of use this has dropped by about 3-5MPG (depending on how cold it is basically).

So yes the claimed figures are obtainable but not if it's too cold
 The End  
Post #3726712th Jan 2006 11:50 pm
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simon
  


Member Since: 11 Jan 2005
Location: Shropshire
Posts: 18296

United Kingdom 2011 Discovery 4 3.0 SDV6 HSE Auto Fuji WhiteDiscovery 4

Agree with Slimer here... good if the FBH is not kicking in.
  
Post #3727213th Jan 2006 1:28 am
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Pelyma
  


Member Since: 06 Jan 2005
Location: Patching, Sussex
Posts: 15496

England 

I regularly get 28-30 from my auto with less in the winter. It really comes down to how you drive it. I know I mention it a fair bit but BNs advice took my cars economy right up. Sure if I want a bit of fun I won't achieve as much or sit at high motorway speeds (80-85) but at least I know how to get the best. So by getting the autobox to change up at about 2,000 revs really does make a difference. Roundabouts are the big killer though especially those on dual carriage ways.
 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 
 
Post #3728913th Jan 2006 10:07 am
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blue meanie
D3 Decade 


Member Since: 04 Aug 2005
Location: Newbury
Posts: 6861

United Kingdom 2006 Discovery 3 TDV6 SE Manual Cairns BlueDiscovery 3

mine does about 23 regardless of how I drive it even using BN methodology,
what kills the mpg in my case though is lots of short jouneys I believe!
 and theeeeennn......???  
Post #3729813th Jan 2006 10:52 am
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Paul J.
 


Member Since: 09 Dec 2005
Location: Leafy Cheshire
Posts: 7657

United Kingdom 

The quoted mpgs are based on standard tests. They allow like for like comparison between different vehicles driving a standard route. You have to remember that it is in the interests of each manufacturer to ensure that the test yields the highests possible figure, so the driving style adopted is one that minimises the wastage of fuel. It would be extremely boring to drive like this in the real world, which is why the stated vales are seldom achieved.

Many other factors that are not directly attributed to driving style can affect real world MPGs, for example the weight of additional passengers and equipment, the use of air conditioning equipment, the use of any non-essential electrical equipment (e.g. lights during daytime driving) that imposes additional load on the alternator, driving with windows open, accessories that increase the drag factor (roof boxes etc). Additionally, automatic transmissions give lower fuel econony compared to manuals.

Accordingly, the standard MPG tests will be carried out on a base manual model (no excess weight) with the air conditioning system, FBH, electrical accessories switched off.

Paul J
(still waiting for my '06 SE - only a few days to go Very Happy )
  
Post #3731313th Jan 2006 1:02 pm
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vito
 


Member Since: 26 Apr 2005
Location: Southern Italy
Posts: 21


Mine was doing 10,5 l/100km in the summer (only extra-urban use), now is set to about 11,7 l/100km. Sad
Lots of pre-heater fuel burning, I suppose.
  
Post #3739313th Jan 2006 10:48 pm
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Ecosse
 


Member Since: 07 Jan 2005
Location: Grampian, Scotland
Posts: 892


Paul J. wrote:


Accordingly, the standard MPG tests will be carried out on a base manual model (no excess weight) with the air conditioning system, FBH, electrical accessories switched off.

Paul J
(still waiting for my '06 SE - only a few days to go Very Happy )


There are actually 2 different sets of figures provided for the government tests & published by LR - for the Manual & Auto - and the Auto is several mpg worse !! A lot depends on driving style (use of hgher revs etc as BN details) but also the routes you drive - if you are running short trips, especially on cross-country routes then expect sub-20mpg with an auto Diesel as the engine will have barely warmed up, FBH will be running & you will be accelerating/braking throughout Very Happy
  
Post #3739914th Jan 2006 7:18 am
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