Member Since: 28 Apr 2017
Location: Buckinghamshire
Posts: 934
The fuel economy on my D4 is shocking!
The fuel economy on my D4 is shocking. Noticeably 25% worse than my D3.
Considering it’s a big brick I think the acceleration and drive ability is great!
Is there a known remap for a D4 (2016) that can help address this?
I’m filling it up every couple of days 😁formerly Disco3Ben
2016 D4, Santorini Black
2007 D3, Black - sold
11th Mar 2020 12:46 am
LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23334
True mpg on my last 2016 D4 was 27.9 averaged over 58,000 miles, using RoadTrip fuel app.2006 D3 HSE (Original & still the best)-GONE
2010 D4 HSE (A bit bling)-GONE
2014 D4 HSE (Almost too bling)-GONE
2015 D4 HSE (A heated what?)-GONE
2016 D4 Landmark (Written Off)-GONE
2016 D4 Landmark (Surely the last!) PD1881 rims-GONE
2017 FFRR SDV8 Autobiography
11th Mar 2020 12:55 am
Pelyma
Member Since: 06 Jan 2005
Location: Patching, Sussex
Posts: 15496
My MY16 D4 was better on fuel than my 06 D3. The Cayenne is about 15% better than the D4.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
11th Mar 2020 8:07 am
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72774
My D4 was to within a spitting nats whisker of the mpg for my D3 in like for like driving. Ah the heady days of high 20s mpg.
Now have to adjust to low to mid 50s on UL for the same trip.
PS Presently driving a rental Mitsu ASX 2WD, getting 40mpg and 91UL is all of 60p/ltr here in Queensland. Happy days.
Disco3Ben sorry your post doesn't include some vital information.
What, corrected MPG are you getting? Filling very couple of days adds nothing to our understanding of the issues. Are you doing 100 miles a day or 250 miles a day?
How are you calculating this?
Was your D3 manual or auto?
My D4, similar to yours has done 23.9 mpg over 40k miles, my D3 did 25.5 mpg over 86.5k miles. In both cases calculated in a spreadsheet of every fill up, 95%+ of the time "brimmed".
The 1.6 mpg deterioration I put down to auto rather than manual - I have disabled stop/start.
NJSSAm I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
I'll just leave my signature with Fuelly data here
MY11 D4, just passed 150k miles. I do live on the side of hill and am using that as an excuse!Front Runner Rack, OEM Ladder & RAI, Tuff-Trek Foxwing, B'rakhah Ingonyama Expedition Trailer, RLD's Spare Wheel Protector, Bodsy's Bars, Empty Pockets! Member of Gloucestershire & Worcestershire 4x4 Response.
11th Mar 2020 9:03 am
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72774
At least you’ll get good mpg going down hill.
Click image to enlarge
Last edited by DSL on 11th Mar 2020 9:17 am. Edited 1 time in total
11th Mar 2020 9:08 am
Davethegeo
Member Since: 01 Oct 2015
Location: Edinburgh
Posts: 879
My 2012 D4 averages 24.4 mpg over 51k miles. A lot of town driving which doesn't help. Goes up to mid 30s for longer sedate trips.
I expect it wasn't the fuel economy that attracted us all to these cars....D1 300Tdi - gone
D2 Td5 ES (Alive remapped...mmm) - sadly gone
D4 2012 SDV6 XS - Stolen
D4 2014 SDV6 HSE - Shiny
11th Mar 2020 9:16 am
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72774
To be honest, the MY07 BMW 320i Touring I had in a previous life (the one where I had lots of money because I didn't have kids or a Land Rover!!!) wasn't much better around these hills.Front Runner Rack, OEM Ladder & RAI, Tuff-Trek Foxwing, B'rakhah Ingonyama Expedition Trailer, RLD's Spare Wheel Protector, Bodsy's Bars, Empty Pockets! Member of Gloucestershire & Worcestershire 4x4 Response.
11th Mar 2020 9:32 am
dgardel
Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025
Pelyma wrote:
My MY16 D4 was better on fuel than my 06 D3. The Cayenne is about 15% better than the D4.
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72774
Weight doesn’t make any difference. I lost over 5 stone & my mpg didn’t change.
11th Mar 2020 9:39 am
dgardel
Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025
Re: The fuel economy on my D4 is shocking!
Disco3Ben wrote:
The fuel economy on my D4 is shocking. Noticeably 25% worse than my D3.
Considering it’s a big brick I think the acceleration and drive ability is great!
Is there a known remap for a D4 (2016) that can help address this?
I’m filling it up every couple of days 😁
may be you are driving faster, since the car does it...............Discovery 5 tdv6 HSE Corris Gray Outback Engineering Limited Edition
I have no idea what my normal mpg figures are. I drive the car, it uses fuel, I feed it some fuel.
some previous cars ...
VX Carlton D (literally the last non-turbo one built) = 33mpg no matter how it was driven.
Triumph Dolomite Sprint = 30 to 33 no matter how fast I went ( and I did )
Both big heavy cars.
Bertone X1/9. small, light, no room to fill it with much of any weight. Book figure = 49mpg. As driven by me = 25mpg.
11th Mar 2020 9:42 am
dgardel
Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025
not heavy as the DiscoDiscovery 5 tdv6 HSE Corris Gray Outback Engineering Limited Edition
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