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Danwilderspin



Member Since: 15 Jun 2016
Location: Cambridgeshire
Posts: 2214

United Kingdom 2007 Range Rover Vogue SE 4.2 SC V8 Zermatt Silver
5.0 economy?

I know it’s a mad subject but hear me out…

I currently have a 4.2 supercharged l322 on lpg. With the cost of lpg sky rocketing and availability reducing, it’s costing me about £75 to get 230miles on lpg.

My question is - with mixed driving would that kind of bang for buck be achievable on a 5.0 supercharged l405? Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

Post #694594 17th Jun 2024 10:13am
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RRV8SC



Member Since: 02 Oct 2021
Location: SW London
Posts: 173

United Kingdom 2015 Range Rover Autobiography 5.0 SC V8 Santorini Black

28-32mpg motorway cruising

11-14mpg stop/start city/urban

19-21mpg mixed

Post #694596 17th Jun 2024 11:04am
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CS



Member Since: 14 Apr 2015
Location: Edinburgh
Posts: 1370

Scotland 2017 Range Rover Autobiography 5.0 SC V8 Corris Grey

That's probably about right, though I'd regard 28-32 as pretty unusual, maybe downhill with a strong tailwind. It also depends on things such as tyres, whether it needs a service etc. For comparison yesterday I put £116.27 of Shell V Power in mine (69.25 litres) and that moved the indicated range from 99 miles to 425, that being on summer tyres with a high proportion of motorway mileage at steady 70mph. I always use E5 super unleaded. Only Range Rovers since 1988

Post #694606 17th Jun 2024 2:14pm
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MPx



Member Since: 29 Jul 2011
Location: South Somerset
Posts: 579

United Kingdom 2017 Range Rover SVAutobiography 5.0 SC V8 Waitomo Grey

As already said it varies quite a bit depending what you're up to (speed/towing/stopstart/etc). But for comparative numbers ... my first 4.4BM V8 was ~17; the 4.2SC ~19; the 5.0SC ~21; the 5.0 SVO ~23. Mike - MPx

2017 5.0 V8 Supercharged SVAutobigraphy Dynamic SVO Palette Grey (2021-...)
2012 5.0 V8 Supercharged Autoboigraphy Orkney Grey (2017-2021)
2007 4.2 V8 Supercharged Vogue SE Tonga Green (2012-2017)
2002 4.4 V8 Vogue Bonnatti Grey (2008-2012)

Post #694616 17th Jun 2024 7:02pm
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Historian



Member Since: 16 Mar 2019
Location: Lancashire
Posts: 28

United Kingdom 

RRV8SC wrote:
28-32mpg motorway cruising

11-14mpg stop/start city/urban

19-21mpg mixed


Pretty much what I get, though 29-30 motorway trips with cruise control set to 70 mph more the norm for me.

Post #694621 17th Jun 2024 8:29pm
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