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Better than 30mpg
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Madrilleno
 


Member Since: 13 Oct 2014
Location: Nottingham
Posts: 1742

England 2012 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4
Better than 30mpg

I didn't think it could be done, but I actually managed nearly 32mpg over a 50+ mile round trip yesterday - on A roads as well, no motorways or dual carriageways. It was a challenge, never more than a feather touch on the throttle, keep the revs below 2000, max speed 50mph, aircon off.


Click image to enlarge
 There are two rules for success,
1. Never tell everything you know.



RLD Spare Wheel Protector
RLD Sump Guard
Narpy Style RRS Grille from Beanie
Discostick 3rd button FBH controller
IID BT
EGRs Blanked
Geoff Gearbox Flush
Prospeed sliders & compressor guard 
 
Post #14685905th May 2015 7:58 am
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72742

Ukraine 

What was that in reality? 32mpg on the trip comp could be anything from 27 - 30mpg in real numbers, it's not called the lie-o-meter for nothing. Whistle Best I've achieved is 36.1mpg over 350 miles, top to top and on a hot (over 30c) day. Thumbs Up
   
Post #14685925th May 2015 8:07 am
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Madrilleno
 


Member Since: 13 Oct 2014
Location: Nottingham
Posts: 1742

England 2012 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

Last fill up - just before this journey - showed a fuel consumption of 22.1mpg. This correlated with an actual consumption on my fuelly.com record of 22.29mpg. Other fill ups seem to be of similar correlation.

Actually, there is something unusaul about my D3. It's the only vehicle I have ever owned which has accurately shown my speed, cross referenced with GPS and roadside speed signs. When it reads 30mph, that's what I'm doing. All my other cars have shown an overspeed indication of 7-10%, i.e. speedo reads 70mph, actual speed is 65mph.
 There are two rules for success,
1. Never tell everything you know.



RLD Spare Wheel Protector
RLD Sump Guard
Narpy Style RRS Grille from Beanie
Discostick 3rd button FBH controller
IID BT
EGRs Blanked
Geoff Gearbox Flush
Prospeed sliders & compressor guard 
 
Post #14686005th May 2015 8:25 am
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Lost for Words
 


Member Since: 03 Sep 2013
Location: Warminster, Wiltshire
Posts: 6703

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

I've seen 37 on the screen for a sustained period, but that's with a remap and uprated IC. Wink
 Current: Discovery 3 06MY (55 reg) HSE Auto Zambezi Silver Zambezi Silver Allisport Fast Road Intercooler, V8 Brakes, Silicone IC Hoses, EGRs Blanked, Remapped, De-Cat pipe, FBHIC
Freelander 2 2007 HSE Manual Tambora Flame
Previous: FL2 56 reg SE Manual Black (written off Sad )
Disco 3 06 reg B7S Manual Rimini Red Rimini Red
Disco 2 TD5 Y reg ES Manual Blue - Chipped Very Happy
Several Discovery 300 TDis
 
 
Post #14686015th May 2015 8:27 am
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Iguana
 


Member Since: 14 Oct 2013
Location: 'Sunny' Zomerset
Posts: 9402

Ukraine 

I average 28 using my spreadsheet, about 2mpg less than the "lie-o-meter' states

My D3 matches GPS as well, also the first ever car that does this - I notice in 50mph speed zones on the motorway, I'm overtaking people who think they are doing 50 Rolling with laughter
 Iggy/Ieuan

Current LR =
2015 RR Sport Autobiography
&
1992 Land Rover Defender Camper

- Gone but not forgotten:
MY10 D4 GS
MY05 Disco 3 'S'
MY14 FL2 HSE manual in Blue
MY15 Disco 4 HSE Lux in Santorini Black
MY08 Disco 3 SE manual in Buck Blue
1960 Series 2 88" (No idea why I sold it!) 
 
Post #14686025th May 2015 8:29 am
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Madrilleno
 


Member Since: 13 Oct 2014
Location: Nottingham
Posts: 1742

England 2012 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

It's odd, isn't it. My feeling is that most manufacturers quite understandably specify their speedo to read slightly over. Can you imagine the furore if a large number of drivers were prosecuted because one manufacturer had a batch of speedos which under-read slighty? The legal profession would all be ordering their D5s on the prospect of the fat fees they were about to make.
 There are two rules for success,
1. Never tell everything you know.



RLD Spare Wheel Protector
RLD Sump Guard
Narpy Style RRS Grille from Beanie
Discostick 3rd button FBH controller
IID BT
EGRs Blanked
Geoff Gearbox Flush
Prospeed sliders & compressor guard 
 
Post #14686115th May 2015 8:35 am
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Lost for Words
 


Member Since: 03 Sep 2013
Location: Warminster, Wiltshire
Posts: 6703

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Quote:
Can you imagine the furore if a large number of drivers were prosecuted because one manufacturer had a batch of speedos which under-read slighty?


If it were traced back to the manufacturer then it'd be them in trouble. Thumbs Up
 Current: Discovery 3 06MY (55 reg) HSE Auto Zambezi Silver Zambezi Silver Allisport Fast Road Intercooler, V8 Brakes, Silicone IC Hoses, EGRs Blanked, Remapped, De-Cat pipe, FBHIC
Freelander 2 2007 HSE Manual Tambora Flame
Previous: FL2 56 reg SE Manual Black (written off Sad )
Disco 3 06 reg B7S Manual Rimini Red Rimini Red
Disco 2 TD5 Y reg ES Manual Blue - Chipped Very Happy
Several Discovery 300 TDis
 
 
Post #14686145th May 2015 8:41 am
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Mogwyth
 


Member Since: 03 Oct 2014
Location: Pwllheli
Posts: 3976

Wales 2005 Discovery 3 4.4 V8 HSE Auto Zambezi SilverDiscovery 3

By law speedos must never read less than than true speed the car is travelling at and can over read by as much as 10%. And because they measure rotation times circumference of the tyres rather than actual distance travelled then manufacturers always set speedos to read over to allow for small variations in tyre manufacturing, tyre pressure and air pressure etc. Where It all goes wrong is if you change tyre sizes!
 ==================================
05 D3 HSE V8 4.4
04 MG TF 135
03 MG TF 115 Cool Blue Edition
02 MG TF 160
00 Hymer B564 Lionheart
1971 Series III 109
 
 
Post #14686425th May 2015 10:02 am
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Alan B
 


Member Since: 12 Feb 2013
Location: Fife
Posts: 6528

Scotland 2007 Discovery 3 TDV6 XS Manual Stornoway GreyDiscovery 3

Not quite the 30mpg but in all fairness I was giving it the berries, motorway and twisty A roads.
So I'm happy with this average speed Whistle





 D3 57 xs Stornaway grey
D2 02 commercial silver gone but a great servant and won't be forgotten

Iid Bluetooth 


Last edited by Alan B on 5th May 2015 3:27 pm. Edited 1 time in total 
Post #14687225th May 2015 1:34 pm
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Iguana
 


Member Since: 14 Oct 2013
Location: 'Sunny' Zomerset
Posts: 9402

Ukraine 

Click image to enlarge


Whistle
 Iggy/Ieuan

Current LR =
2015 RR Sport Autobiography
&
1992 Land Rover Defender Camper

- Gone but not forgotten:
MY10 D4 GS
MY05 Disco 3 'S'
MY14 FL2 HSE manual in Blue
MY15 Disco 4 HSE Lux in Santorini Black
MY08 Disco 3 SE manual in Buck Blue
1960 Series 2 88" (No idea why I sold it!) 
 
Post #14687775th May 2015 3:19 pm
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Alan B
 


Member Since: 12 Feb 2013
Location: Fife
Posts: 6528

Scotland 2007 Discovery 3 TDV6 XS Manual Stornoway GreyDiscovery 3

Average speed Iggy?

Whistle Whistle Rolling with laughter
 D3 57 xs Stornaway grey
D2 02 commercial silver gone but a great servant and won't be forgotten

Iid Bluetooth 
 
Post #14687805th May 2015 3:26 pm
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Tangsoodo
 


Member Since: 26 Jan 2013
Location: Worcester
Posts: 301

England 2006 Discovery 3 TDV6 S Auto Java BlackDiscovery 3

I think iggy had just reset his average so it was reading 99mpg and by the time he had switched his camera on it had started to tumble. That or photoshop Rolling with laughter
 Mods:
DNA Remap
De-Tangoed
Clear indicators
D4 rear lights
Sat Nav with D4 surround
Flip down DVD player
Blackvue
Side steps
3rd row headphone/switches
Debadge
EGR's blanked 
 
Post #14688225th May 2015 4:34 pm
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72742

Ukraine 

Whistle Whistle

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Post #14688345th May 2015 4:52 pm
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Red Merle
 


Member Since: 30 Aug 2014
Location: Liskeard
Posts: 7438

United Kingdom 

Wow, but was that average taken with the body on the chassis? Whistle

Click image to enlarge
 2011 - 2015: 3 x FL2
2015 - 2017: 2 x D4
2017 to date: FFRR SDV8
2023 to date: FL2 as a second car

2021 to date: Hinckley built ‘14 Triumph Trophy 1200
2022 to date: Hinckley built ‘14 Triumph Trophy 1200 & sidecar!
(One of only two known to exist in the world!) 


Last edited by Red Merle on 5th May 2015 4:59 pm. Edited 2 times in total 
Post #14688365th May 2015 4:55 pm
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72742

Ukraine 

Rolling with laughter Rolling with laughter On fortunately. AC wasn't working and car was 38c inside, good job the seat covers are waterproof as the sweat was pouring off me. Mpg figured was trashed by the climb up to Andorra where luckily the LR dealer could regas the AC. Mr. Green
   
Post #14688385th May 2015 4:58 pm
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