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John P



Member Since: 26 Dec 2013
Location: West Sussex
Posts: 311
United Kingdom 2012 Defender 90 Puma 2.2 SW Corris Grey
Fuel consumption in thick sand
This is a difficult question to answer, but here goes anyway.

Does anybody know how much your fuel consumption drops when driving in really soft sand, like the desert/beach sand? I’m trying to calculate how much fuel I need to carry to cover a minimum of 1000km or 621 miles? (No fuel stops during this stage)

Car in question is a PUMA 110, 2.4 running BFG tyres and loaded with all the normal overlanding gear. Currently I’m getting approximately 29mpg on the road. So will this halve or be a lot worse?

Thanks
John
Post #1019880 2nd Jan 2024 5:48pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2408
Chile 2007 Defender 110 Puma 2.4 SW Chawton White
My guess. 29x0.4 Puma 110" SW

.............................................................
Earth first. Other planets later
Post #1019882 2nd Jan 2024 6:07pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17322
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
There are so many variables it is an impossible question to answer. A laden vehicle on deep soft sand , it wouldn't surprise me if it dropped to 5mpg.

How soft? How laden? BFGs (even though you don't say what type) aren't sand tyres so won't be ideal.

I would be very careful and take local advice and also check consumption before you pass the point of no return.
Post #1019903 2nd Jan 2024 9:19pm
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TexasRover



Member Since: 24 Nov 2022
Location: Paris
Posts: 1019
France 2002 Defender 110 Td5 DCPU Chawton White
I have done a bunch of sand driving (beach and desert). This is hard on man and machine. You need a lot of focus, it's not fast and with the extra load and low speed, not to mention typical hot environment, your cooling system needs to be top notch.

Personally I never worried too much about range. Start with a full tank and limit your time in the sand. Are you going to cross a desert you are worried about range?
Post #1019928 3rd Jan 2024 6:44am
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