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sako243



Member Since: 08 Jul 2014
Location: Wales
Posts: 1061

Wales 1994 Defender 110 300 Tdi CSW Alpine White
LS3 "economy"

So having sold my TDV8 I'm seriously considering a small upgrade. Those that have an LS3 what sort of mileage are you getting?

I'm not particularly fussed as long as it's not continuously in single digits. However I do a fair amount of moderate distance journeys (Surrey to Highlands so about 700 miles) and more curious about how many tanks it would require because stopping every couple of hundred miles would get tedious. Ed
82 Hotspur Sandringham 6x6
95 Defender 110 300Tdi

Post #735597 18th Oct 2018 8:10pm
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GREENI



Member Since: 22 Aug 2010
Location: staffs
Posts: 10115

United Kingdom 

I'd guess 15-22mpg.. Auto plus brick like aero.
for eg : My 4.6 on Saturday did a 50 mile round trip, plus an hour trundling around lanes on a treasure hunt and did £50 fuel. instagram @v8_scumbag

Post #735604 18th Oct 2018 8:37pm
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sako243



Member Since: 08 Jul 2014
Location: Wales
Posts: 1061

Wales 1994 Defender 110 300 Tdi CSW Alpine White

Probably wouldn't go auto but keep it manual so a little bit gained there.

I'd have thought being a modern engine it should manage a little more than an old Land Rover engine. Ed
82 Hotspur Sandringham 6x6
95 Defender 110 300Tdi

Post #735605 18th Oct 2018 8:39pm
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GREENI



Member Since: 22 Aug 2010
Location: staffs
Posts: 10115

United Kingdom 

I've spoken to as many people as possible who have an LS and I was expecting 30-35 answers, but not from what I hear.
Let's hope somebody comes along with an answer for you. instagram @v8_scumbag

Post #735608 18th Oct 2018 8:46pm
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sako243



Member Since: 08 Jul 2014
Location: Wales
Posts: 1061

Wales 1994 Defender 110 300 Tdi CSW Alpine White

Interesting, I'm slightly surprised by that. But then again it is an American engine... Laughing Ed
82 Hotspur Sandringham 6x6
95 Defender 110 300Tdi

Post #735612 18th Oct 2018 8:51pm
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Hufflepuff



Member Since: 25 Oct 2014
Location: Hampshire
Posts: 562

England 2005 Defender 90 Td5 XS CSW Tonga Green

GREENI wrote:
I'd guess 15-22mpg.. Auto plus brick like aero.
for eg : My 4.6 on Saturday did a 50 mile round trip, plus an hour trundling around lanes on a treasure hunt and did £50 fuel.


That's a big ouch Greeni! If my mathematics is correct:

£50 @ £1.30/litre --> 38.5 litres --> 8.46 UK gallons

50 miles using 8.46 gallons is 5.9 mpg. I hope I get better than that from mine! Big Cry 2005 Td5 90 XS
1989 V8 110 CSW

Post #735614 18th Oct 2018 9:11pm
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sako243



Member Since: 08 Jul 2014
Location: Wales
Posts: 1061

Wales 1994 Defender 110 300 Tdi CSW Alpine White

Reminds me of when Nige said he went laning. Couple of hundred miles and a 500 quid bill but big grin. He does have a 5+l John Eales engine. Ed
82 Hotspur Sandringham 6x6
95 Defender 110 300Tdi

Post #735618 18th Oct 2018 9:14pm
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GREENI



Member Since: 22 Aug 2010
Location: staffs
Posts: 10115

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Laughing

The return trip was extremely 'noisy' Laughing

My economic daily gets 25mpg. Cool Cool instagram @v8_scumbag

Post #735624 18th Oct 2018 9:32pm
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JOW240725



Member Since: 04 May 2015
Location: Suffolk
Posts: 7098

United Kingdom 2012 Defender 110 Puma 2.2 XS CSW Orkney Grey

I suspect the trouble is similar to why my BAS170 remap hasn't delivered better mpg, it's just too much fun driving with a heavy right foot. In truth I never work out mpg has I don't want to know.

My old 3.5V8 90 often returned 9mpg Shocked

I suspect your answer is a long range secondary fuel tank and a big smile Thumbs Up I look forward to hearing more... James
MY2012 110 2.2TDCi XS SW Orkney Grey - http://www.defender2.net/forum/topic43410.html
MY1990 110 200TDi SW beautifully faded Portofino Red - https://www.defender2.net/forum/post743641.html#743641
MY1984 90 V8 Slate Grey - https://www.defender2.net/forum/post744557.html#744557
Instagram @suffolk_rovers

Post #735650 18th Oct 2018 11:00pm
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davew



Member Since: 02 Jan 2012
Location: North Yorkshire
Posts: 888

England 1990 Defender 90 V8 Petrol PU Auto Rioja Red

I get around 10-12MPG on average, can just about squeeze about 15MPG out of it on a good run but don't get many of those. You don't put an engine like that in a car and then chug around at tick over all day scared of using the power !

If you take the amount of air it sucks in during each revolution then calculate how much fuel it takes to keep the mixture of air and fuel in the right ball park, a 5.7 lit engine or bigger is going to use more fuel just ticking over than something with half the capacity. It may not be stressed very often or even get much above 3000 RPM very often BUT even at idle it will sup more fuel than a small engine running at 3 times the RPM.

Mine went through an emissions test today with flying colours, it's burning the fuel really efficiently and the emissions are really low... still supping a lot of fuel to do that though ! http://www.yorkshireoffroadclub.net/

Post #735654 18th Oct 2018 11:13pm
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V8GPC



Member Since: 18 Jul 2016
Location: Manchester
Posts: 289

United Kingdom 


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Post #735658 19th Oct 2018 6:36am
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LR Sam



Member Since: 08 Nov 2012
Location: Yorkshire
Posts: 209

England 

I wouldn't be buying an LS3 conversion for its MPG! My friend has one in a 110 and gets 18mpg on a good run. He has now added a 120 litre fuel tank!

Post #735681 19th Oct 2018 9:47am
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sako243



Member Since: 08 Jul 2014
Location: Wales
Posts: 1061

Wales 1994 Defender 110 300 Tdi CSW Alpine White

Thanks for the info. I was more curious than anything. Determined to make the most of V8s before they're banned Laughing

Dave - valid comment on fuel air mixture.

It just comes slightly into play when the nearest petrol station is 50 miles away and not necessarily open at the time I normally arrive in the Highlands! Ed
82 Hotspur Sandringham 6x6
95 Defender 110 300Tdi

Post #735761 19th Oct 2018 8:11pm
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GREENI



Member Since: 22 Aug 2010
Location: staffs
Posts: 10115

United Kingdom 

Diesels will be banned first Mr. Green instagram @v8_scumbag

Post #735785 19th Oct 2018 8:51pm
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sako243



Member Since: 08 Jul 2014
Location: Wales
Posts: 1061

Wales 1994 Defender 110 300 Tdi CSW Alpine White

Well could go for my original thoughts - custom ECU and TDV8 Rolling Eyes Ed
82 Hotspur Sandringham 6x6
95 Defender 110 300Tdi

Post #735787 19th Oct 2018 8:51pm
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