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Bergos



Member Since: 08 Aug 2015
Location: Somewhere in Portugal
Posts: 95
Portugal 2007 Defender 110 Puma 2.4 HT Keswick Green
2..4 Fuel economy
Hi.
My car is a 110 HardTop. Full roll cage, winch, full underbody guars (most of them made of aluminium). LR HD suspension. 265/75R16, wolf rims.

Oil - 5W40.

What economy should I expect?

When I drive up to 100km/h I can arrive to 10l/100km. Going 120-130km/h in a highway is decreasing it to ~12.5l/100km.

The thing is that 3 years ago the consultation was 10 litres on the highway. In the meantime I put the roll cage and a snorkel. Not too many more mods that could make a difference. Bergos

LR Defender 110 HT 2007 (2.4 Puma)
https://www.facebook.com/LR.Wanderlust/
Post #725362 25th Aug 2018 5:33pm
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4217
United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
A Puma 2.4 should run 5w30, which could account for a small loss in economy if you switched to 5w40 at some point along the way. Also, the Ford spec for a Puma is specifically for a fuel economy engine oil (I think it is WSS-M2C913-B) that resist the increase in viscosity that usually happens as an oil ages. If your current oil isn’t specifically a fuel economy formula then that too may account for a small loss. 2007 110 TDCi Station Wagon XS
Post #725366 25th Aug 2018 5:52pm
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redline



Member Since: 28 Jun 2015
Location: Mountains and Lakes
Posts: 221
Switzerland 
My 2.4 with same tyre size averages around 10.5-11km/L with the following driving profile:
- 60% countryside with rolling hills with speeds approx 50-75km/h
- 30% highway at speed 100-105km/h
- 10% town with speeds <50km/h

Load typically 2-3 persons + 100kg "stuff". All oils as per spec.

I have also recently started running 2 stroke oil in the fuel (ratio 200:1). Can't say I've noticed the fuel consumption changing (need a few more tanks to reach a conclusion) but engine seems to run smoother and cleaner (less smoke). Others have reported improved fuel consumption though.
Post #725371 25th Aug 2018 6:24pm
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Bergos



Member Since: 08 Aug 2015
Location: Somewhere in Portugal
Posts: 95
Portugal 2007 Defender 110 Puma 2.4 HT Keswick Green
Bluest wrote:
A Puma 2.4 should run 5w30, which could account for a small loss in economy if you switched to 5w40 at some point along the way. Also, the Ford spec for a Puma is specifically for a fuel economy engine oil (I think it is WSS-M2C913-B) that resist the increase in viscosity that usually happens as an oil ages. If your current oil isn’t specifically a fuel economy formula then that too may account for a small loss.


Now the big question is how does this oil protect the engine in hot climate - 40-45°C? Bergos

LR Defender 110 HT 2007 (2.4 Puma)
https://www.facebook.com/LR.Wanderlust/
Post #725372 25th Aug 2018 6:55pm
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4217
United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
If you are using a quality one, like Motul Specific 913D, probably fine. I would certainly stay away from the cheaper ones if you are running extreme conditions. Did LR ever specify a different grade hotter climates? 2007 110 TDCi Station Wagon XS
Post #725374 25th Aug 2018 6:57pm
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2645
South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
see my sig --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
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Post #725393 25th Aug 2018 9:52pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6300
England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
best I've managed on a standard 110xs with remap is 7.037ltr / 100km (ie 40mpg)

in terms of economy speed is the work of the devil, on need to be cruising at about 80-85kmh. Thumbs Up
Post #725425 26th Aug 2018 10:07am
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Hal



Member Since: 04 Jun 2014
Location: Bedford
Posts: 91
United Kingdom 
Over the last 12 months, 6000 miles, my 2011 110 station wagon has averaged out at 29.4 imperial mpg = 9.6 l/100km. That's with standard spec oils, winch, guards, 100kg of stuff in the back, over all sorts of driving inc. light towing., green lane, motorway long distance, whatever.

But every individual fill-up is different, depends what I've been doing.
Post #725454 26th Aug 2018 1:21pm
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pme



Member Since: 06 Jan 2016
Location: cambridge and mainly ariege
Posts: 49
United Kingdom 2007 Defender 90 Puma 2.4 SW Tonga Green
Same as Hal, long term average over 15000km 10l/100km and the hill here are quite big
Post #725664 27th Aug 2018 4:08pm
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