Member Since: 27 Dec 2005
Location: Zurich
Posts: 415
D4 37mpg on trip to Val d`isere
So just been on the annual boys ski trip, pumped the tires up to 2.5 bar fronts and 2.7 bar rear, added half a litre of mineral 2 stroke oil and hey presto 37 mpg @ 80 mph average, thats amazing (our car has alive Ecu tune). Also realized that driving in Sport mode on twisty roads without paddle shift engaged is FAR better
26th Jan 2020 4:38 pm
Grumpydog
Member Since: 10 Apr 2019
Location: Medway/ Mos Eisley
Posts: 153
And I was happy with 24mpg from my D3 on Sundays trip to Dover for rugby! 2004 Disco 3 HSE TDV6
2015 Audi Q5 S Line plus
2008 Audi A4 Avant S Line Black Edition. Gone
2005 Chrysler Grand Voyger. Gone
27th Jan 2020 1:10 pm
grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6266
we got 41 mpg on the way home for Christmas than 26 on the way back with same wind but now trying to slow car down hahaha
27th Jan 2020 1:47 pm
richardch
Member Since: 27 Dec 2005
Location: Zurich
Posts: 415
Most I ever got in 12 years on my D3 was 25 mpg & that fell by 10% after changing the belts, something I probably wouldnt do again given the choice on an engine running perfectly. 50% more economy on the SDV6 D4 is simply awesome !!
27th Jan 2020 2:48 pm
RogB
Member Since: 15 Jun 2018
Location: Mansfield
Posts: 1651
I regularly return 33-nearly 36mpg on my daily 35 mile commute to work (based on dashboard)
getting around 27mpg round town
not too different to my old FL2 autos2011 D4 XS 305 MY12 - gone but not forgotten
28th Jan 2020 9:03 am
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72787
Re these high mpg numbers, reality or trip comp/lie-o-meter? I found that if I switched to super diesel the mpg would immediately go up by a fair wedge however fuel in vs miles done was same old, same old. It was like the trip comp was having a sugar rush.
28th Jan 2020 9:36 am
richardch
Member Since: 27 Dec 2005
Location: Zurich
Posts: 415
This is def real, if only you could get something mildly similar in the RRS SDV8 I would buy one but from the few I have driven thats impossible
My lieometer is accurate in the summer give or take .1mpg, but mostly dead on, adjusted with the iiD -7% winter not so accurate, put it down to the FBH.
28th Jan 2020 6:30 pm
nigel207
Member Since: 26 Mar 2009
Location: Nottinghamshire
Posts: 1344
As DSL has said, if you’re quoting the figures from the dash, they’ll be a mile off (probably at least 10%), unless the computer has been adjusted using an IID device (or similar). The ONLY accurate way is to use the brim to brim method. Is this what you used?
28th Jan 2020 6:33 pm
LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23367
My long term average on the EU6 engine 2016 D4 was 27.98mpg using the Road Trip fuel app. i never got more than 33 mpg on a long motorway run at c.70mph.
I can get more mpg on a motorway run out of 4.4 SDV8, mid 30's are easily achievable, but then it's lighter and more aerodynamic and the V8 is barely ticking over. With a mix of town and off roading it has dropped to a low of 22.16 mpg.
Long term average should be much the same as the D4 I'd guess, it's still too early to tell.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
My D4 driven fairly hard over 24,470 miles has used 1,022.69 gallons of fuel giving a realistic 23.9 MPG.
The lieometer on the dash usually shows an average of 26 or more mpg over a reasonable journey so is overstating by over 2 MPG.
The best MPG on any tankful has been 26.5 MPG a relaxed trip from Hampshire, through Somerset to Wales.
The worst 16.5 on a high speed trip in Europe. The worst trip in the UK was 18.1, in summer stop/start with A/c running. I also had 18.1 for a tankful of local driving in very cold weather over a few days with daily use of the FBH.
Much better than my DB6 which did less than 9 MPG on a summer trip to the South of France, travelling with a DB4GT which did even less !
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.
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