Any advice on the driving range of a 3.6, based on steady (70 to 75mph) motorway miles? Based on average fuel consumption results quoted in a number of posts (anywhere from 25mpg to 30+mph), and given a 105 litre fuel tank; the maths would say between 575 miles to 690 miles to a full tank. Is that realistic?

I would have a 200 mile round trip to the office when I need to be there, so a good range is key; my planning to buy a FFRR (in the price range 16-19k)is at an early stage.

Thanks in advance

This is the best I have had on a 150 mile steady run from London to Sheffield in my 3.6 TDV8...






I'd say my average on a motorway run is circa 28/29 mpg

Last edited by CEEGEE on 29th Jan 2015 7:35pm. Edited 1 time in total

I use my 2005 TD6 every day for a commute to work and back (round trip of 110 miles). I do 550 miles per week at speeds of between 45 and 70 mph on average.
I normally put in about 90 litres of devil's juice each week, and reckon I would get about 610 to 650 miles out of a full 100 litre tank.

Fuel consumption computers (Trip 1 and Trip 2) always shows 26.4mpg, but I do a brim to brim calculation each week and it works out at around 29 to 30mpg.

In the real world, you never get that close to emptying the tank - I've been into the mid 90's and that was a good few miles past the computer telling me the range was zero

I think low 500's is reasonable - but I don't think I've ever done a full tank at those speeds all the way - 450 is my norm.

If you live anywhere near a mountain you will have no chance of that mileage.
Ive had a 3.6 and on long runs and up and over mountains i would only gat an average of 23MPG over a years driving.
If you're doing mainly motorways you will maybe get 25MPG.  2020 Porsche Panamera Turbo Hybrid (V FAST)
2017 Range Rover Autobiography 5.0 V8
2018 JCW Mini Cooper
2018 Skoda VRS

^

Get about 450-500 on a run but never let it get too low so tricky to tell. A return to the south of France from derby needs me to stop and put 3/4 tank in about 1hr into France, 2/3 tank in Dijon, which gets us there, then brim it when leaving from about 1/4, 3/4 tank in Dijon and fill up from 1/4 just before the tunnel...... So somewhere around 3-3 1/2 tanks return for about 1900 miles......

But that is a full on cruise only. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

400 is about my limit. Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey

Only had mine for a couple of weeks but do 130 a day to work and back. clear motorways is the key to this. The 3.6 seems to be doing around the 28/29 mark if the route is clear at a steady speed.

Braking and accelerating again drops that down to around 23/24 in my experience (but it is early days for me) Ash
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2016 SDV8 AB

Thanks for the real-life results. I'm on the M4 almost door to door for 100 miles, so if I plan for low 500s that would be a reasonable target (5 trips before a refill). That's good information for me, and helps me factor fuel into my budget.

I've read and re-read a large number of posts over the last couple of weeks, great education in all thing FFRR. Keep it up!!

I would also try to stick to the speed limit, as you get faster the consumption drops off a cliff. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

I do a 50 mile daily commute, mixture of country lanes A roads and city driving and I get 510 to 530 and fill about 90 litres, best I have done on a steady motorway cruise at 70ish is 600

Top tips to get good mpg...
1. Drive nice and steady, anticipate the road and traffic ahead. Instead of hard braking and accelerating, anticipate and take your foot off the pedal...let the engine slow the vehicle then maintain a gentle acceleration.
2. Keep your tyres at the proper pressures.
3. Keep the vehicle well maintained and serviced.
4. Don't drive it like you've just stolen it!

But most of all.....Enjoy it, after all you'll be driving a Range Rover

There's no better feeling

I have had about 650 miles out of a tank, was steady driving at 60 56 TDV8 Vogue SE
9 Freelanders, 2x 2002 TD4ES, 2001 TD4, 2002 1.8GS, 2000 XEDI, 2x 2000 1.8ES, 2004 1.8 & 2000 1.8 GS (rolled)
91 Lotus Carlton (sold)
90 Lotus Elan (BRG)

I can't imagine sticking to 60 for 650 mikes!  Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey

^ I take it you never tried the American Interstate highways in the time if the "double nickel " (55 mph). It's a big country.

(Okay, ours is bigger, but out of the urban areas, it's more like a Atrunk type system rather than a motorway. Many Canadians will travel through the US when going coast to coast as it's rather faster (even when it was 55)and the "gas" is cheaper.