It still impresses me how much outside temp affects mileage. During winter with temps below freezing I struggle to break 18.2 MPG U.S. on a common 300 mile trip I do. Once over 60F I can break 20 MPG with less effort and 21 when it gets closer to 80F. Air density has a bigger affect than expected.

57 plate 3.6 tdv8, I did 240 motorway miles today and reset the trip beforehand.
30.5 mpg. 75mph ish on the speedo.
Around town 23mpg.

Similar to above

'57 3.6 TDV8 (208,000 Miles)

Trip to Belgium 33.36mpg
Return 30.79mpg

Pottering around currently 23.28 mpg

Actual brim to brim calculations.

horse86 wrote:

4.4 gasoline...16.5 mpg (mostly highway)

16mpg, 2001 4.0 P38, and that is driving quite steadily.

4.2 SC 6.4 km per ltr !!
Ah wel petrol over here is only €1.54 per ltr

Mines not great only getting 16.8 MPG I only do short journeys most of the time but still.

I've only just bought my '08 3.6 TDV8 and it's my first RR but I have to say 600 miles in with no motorway running (daily 22 mile commute on country and urban roads, one 140 mile round trip on A roads) I'm actually quite happy to see so far I'm averaging 27.5 mpg (according to the car, not my own calculations)

Currently averaging 17.0mpg in my 05 SC

cheers Alex

2018 Skoda Kodiaq vRS
2009 Caterham Supersport Race car
2007 M5 Touring
2005 Range Rover Vogue SE Supercharged
2004 SL55 AMG

14.5 UK MPG (Mostly short town trips)
2007 4.2 SC

22.6 in the 5.0 s/c

Must try harder

22.6 is very good from a 5.0 S/C - mainly motorway driving?

I get between 19-25mpg in my 5.0 S/C. Just on a clear motorway run at 70mph it will do 25mpg, but as soon as you throw in some traffic or stop/start driving, it plummets pretty quickly.

Just crawling across Central London for an hour it does about 15mpg, and by the time I've done the motorway stretches down to Dorset I'm typically up to about 23mpg combined. That is mainly driving fairly softly though, not accelerating hard all the time!

Managed 39mpg on a run from Kent to Newcastle in my Westie 4.4 TDV8. Couldn't believe it myself so had to take a snap.

Mine sits consistently around 20  Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey

how do you all get such good fuel economy. even on a long run I dont manage much over 30.....\

I might see 39 on a downhill with a following wind...... There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial