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Poor V8 Fuel Consumption
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gmac
 


Member Since: 27 Jun 2006
Location: Great Dunmow
Posts: 10

United Kingdom 2007 Discovery 3 TDV6 XS Auto Java BlackDiscovery 3
Poor V8 Fuel Consumption

Since going on Desert Storm in Morrocco my V8 has averaged 14.3 mpg, it used to average 16.6. It was running very badly when it came back. I have had it in the main dealer three times, including an early 30,000 mile service to try and sort it out. They replaced the EGC valve which made it run better, but the consumption has remained bad. The dealer maintains it is in within limits. Can anyone suggest anything (apart from I should have had the diesel!)
  
Post #13407528th Feb 2007 5:25 pm
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Gareth
Site Moderator 


Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26699

United Kingdom 

Could be a few hundred weight of sand in the sills and chassis?


Sorry, I'll get me coat Wink
  
Post #13411528th Feb 2007 7:34 pm
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LRtuning
 


Member Since: 22 Feb 2005
Location: AUSTRALIA + UK
Posts: 468

2006 Discovery 3 TDV6 SE Auto Adriatic BlueDiscovery 3

Have the dealer look at the air flow meter on the car. Also, have a look at the air filter and see if it's blocked or very dirty...this will definately have a detrimental effect on fuel economy.
  
Post #13412228th Feb 2007 7:51 pm
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72774

Ukraine 

Maybe when someone said bring back some camels, you got the wrong ones! Wink

Coat already on!
   
Post #13412328th Feb 2007 7:52 pm
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gmac
 


Member Since: 27 Jun 2006
Location: Great Dunmow
Posts: 10

United Kingdom 2007 Discovery 3 TDV6 XS Auto Java BlackDiscovery 3

LRtuning wrote:
Have the dealer look at the air flow meter on the car. Also, have a look at the air filter and see if it's blocked or very dirty...this will definately have a detrimental effect on fuel economy.


Thanks LRtuning, I will check these, although surely the air filter is changed at the 30k service, but I will check it all the same.
  
Post #13416428th Feb 2007 10:34 pm
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RLD
Uncle Ray 


Member Since: 18 Jul 2005
Location: all ways some where
Posts: 11927

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

I so your mate filing the tires up with sand he told me it was for stability Whistle
 Home of RLD Hidden winch mounts Spare wheel Locks Trailer Body Fabrication ray@rld-tech.co.uk D3/4 sump plates MY 14 sump plates and the Discovery Sport wheel protectors Discovery 5 wheel locks
more Helsport tents and other things for camping Law of Mechanical Repair:
"After your hands are coated with grease, your nose will begin to itch and you'll have to pee!" 
 
Post #13416528th Feb 2007 10:40 pm
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gmac
 


Member Since: 27 Jun 2006
Location: Great Dunmow
Posts: 10

United Kingdom 2007 Discovery 3 TDV6 XS Auto Java BlackDiscovery 3

Gareth wrote:
Could be a few hundred weight of sand in the sills and chassis?


Sorry, I'll get me coat Wink


Still finding it Censored everywhere!!
  
Post #1342381st Mar 2007 11:14 am
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DrtyBlvd
 


Member Since: 08 Dec 2006
Location: Europe
Posts: 36

Spain 2006 LR3 4.4 V8 HSE Auto Zermatt SilverLR3

Stuck in Sport mode? Very Happy

Seriously - you got 16+ out of yours? I'm astonished and jealous. If I make 14+, it's because I'm *not* in sport mode and really trying... Rolling Eyes
 "There is a road from the eye to the heart that does not go through the brain" - G.K Chesterton  
Post #1343681st Mar 2007 7:19 pm
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mrmarklin
 


Member Since: 29 Nov 2006
Location: People's Republik of Kalifornia
Posts: 168

United States 2006 LR3 4.4 V8 HSE Auto Buckingham BlueLR3

I only get 16+ on the open road highway driving. I think your mph estimator was broken BEFORE you went to Morocco, and is just now working properly. I certainly would be happy to get 14+ or - driving normally around where I live. It's usually less. Sad
 '06 LR3 4.4 V8 HSE Heavy Duty package, Satellite Radio, Luxury Package  
Post #1343721st Mar 2007 7:50 pm
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gmac
 


Member Since: 27 Jun 2006
Location: Great Dunmow
Posts: 10

United Kingdom 2007 Discovery 3 TDV6 XS Auto Java BlackDiscovery 3

mrmarklin wrote:
I only get 16+ on the open road highway driving. I think your mph estimator was broken BEFORE you went to Morocco, and is just now working properly. I certainly would be happy to get 14+ or - driving normally around where I live. It's usually less. Sad


Maybe I had my rose tinted shades on! Perhaps i will have to live with these figures.
I am at the moment changing the air filter and have got a 250 mile motorway trip in the morning, so I will reset the trip and see what I get.
  
Post #1343821st Mar 2007 9:01 pm
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DrtyBlvd
 


Member Since: 08 Dec 2006
Location: Europe
Posts: 36

Spain 2006 LR3 4.4 V8 HSE Auto Zermatt SilverLR3

Have some "fun" doing it...

1. Keep your aircon off
2. Don't exceed 120k/70mph
3. Don't use sport mode
4. Draft like it's the indy 500 and your life depends on it

Report back your figures! Very Happy
 "There is a road from the eye to the heart that does not go through the brain" - G.K Chesterton  
Post #1345092nd Mar 2007 12:47 am
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gmac
 


Member Since: 27 Jun 2006
Location: Great Dunmow
Posts: 10

United Kingdom 2007 Discovery 3 TDV6 XS Auto Java BlackDiscovery 3

DrtyBlvd wrote:
Have some "fun" doing it...

1. Keep your aircon off
2. Don't exceed 120k/70mph
3. Don't use sport mode
4. Draft like it's the indy 500 and your life depends on it

Report back your figures! Very Happy


OK, removed air filter, it didn't look too bad, but changed it anyway, Air box was full of fine dust, so vacuumed it out.
Did 100 miles driving like an angel,but motorway was busy and it returned 20.4 mpg
Did some off roading that knocked the average down to 14ish mpg
Drove the 100 miles home fairly normally and it now reads 17.6 mpg
  
Post #1350223rd Mar 2007 4:45 pm
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LRtuning
 


Member Since: 22 Feb 2005
Location: AUSTRALIA + UK
Posts: 468

2006 Discovery 3 TDV6 SE Auto Adriatic BlueDiscovery 3

Glad you got it sorted
  
Post #1350333rd Mar 2007 6:02 pm
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gmac
 


Member Since: 27 Jun 2006
Location: Great Dunmow
Posts: 10

United Kingdom 2007 Discovery 3 TDV6 XS Auto Java BlackDiscovery 3

LRtuning wrote:
Glad you got it sorted


Many Thanks

Got the MAC4X4 next week, 1000 miles that will be the acid test.
  
Post #1351874th Mar 2007 12:03 pm
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