Hi, first post and a fuel consumption question.

Submitted: Sunday, May 28, 2017 at 18:26
ThreadID: 134974 Views:2421 Replies:10 FollowUps:6
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G'day everyone. My name's Steve, and after way too long I'm getting the 4x4 bug back hard again. I've had my GQ ute for about 19 years and have been getting it ready for some decent touring.

We are going to cross the Simpson desert in a couple of weeks from East to West, and after a bit of researching on the internet found this site and joined. I found the trek note on crossing the desert with the combined route and like the look of it. If I'm reading it right it says a guide to fuel consumption of 97 litres for a 6 cylinder diesel. Whereas I've just read a Hema Simpsons Desert map that says to allow 180/ 200 litres going straight across the French line ?

I understand conditions change but could someone please give me an idea on how much to take? I have 170 litres in two tanks and was only going to take one jerry can.

Thank you.
Cheers
Steve
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Reply By: Allan B (Sunshine Coast) - Sunday, May 28, 2017 at 19:07

Sunday, May 28, 2017 at 19:07
.
Hi Buzzo, and welcome to the EO Forum.

Fuel consumption, together with tyres and batteries, will elicit widely varying responses.

I do not take detailed interest in my consumptions but on my first Simpson crossing some years back in a heavily laden Troopy carrying 180 litres diesel I was getting worried about the fuel gauge as we approached Mt Dare.
As it happens we arrived there with maybe 30 litres left in the tank, so we used about 150 litres.

These days we have a 180L long-range tank so all-up carry 270L and have no concerns.

So my 150L does not sit well with the figures provided in the EO file of "4cyl=91L, 6cyl=97L and 8cyl=92L". Don't understand how the 8cyl uses less than the 6cyl.

But lets see what others have to say.
Cheers
Allan

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Follow Up By: TTTSA - Monday, May 29, 2017 at 14:52

Monday, May 29, 2017 at 14:52
The 8 cylinder is not working as hard, we recently travelled the CSR with 2 other vehicles.
Mine is V8 turbo diesel and the other 2 vehicles were 4 cyl turbo diesels, 2.0lt and 2.5lt and all vehicles were towing campers.
I returned the best fuel efficiency off road as most of the time I was in 2nd or 3rd high at about 1200rpm.

Cheers
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Reply By: Member - Scrubby (VIC) - Sunday, May 28, 2017 at 19:17

Sunday, May 28, 2017 at 19:17
G`day Buzzo welcome to the Forum.

Mate I reckon you might get some of the info you seek from some Blogs about crossing the Simpson.
On the blue bar at the top of the page click on the "menu " button, enter "Simpson Crossing" in the search box ... Hey Bingo.

I have a Blog there titled "Simpson Desert Double Crossing Trip Report August 2008" in page 3.
A while ago now but the info is still relevant.

Enjoy the trip and stay safe.

Scrubby

I don`t know where i`m going but i`m enjoying the journey.

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Follow Up By: Member - Scrubby (VIC) - Sunday, May 28, 2017 at 19:23

Sunday, May 28, 2017 at 19:23
Sorry ,I should have said "..... click on the Menu Button, then click "BLOGS" then enter ...."

Scrubby
I don`t know where i`m going but i`m enjoying the journey.

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Reply By: 2517. - Sunday, May 28, 2017 at 19:41

Sunday, May 28, 2017 at 19:41
Birdsville to Oodnadatta in 75 series Troopy heavily loaded 120 litres ,return trip 119 litres via French line..If you have 170 litres of fuel heaps.
AnswerID: 611495

Follow Up By: ian - Sunday, May 28, 2017 at 22:28

Sunday, May 28, 2017 at 22:28
I agree.
I have a petrol 80 series and would not use 180 litres. Could the figures be for petrol, not diesel?
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Reply By: Member - mechpete - Monday, May 29, 2017 at 08:29

Monday, May 29, 2017 at 08:29
our last trip down the Hay River trk to Poepells an to B/Vlle
my GQ ute returned 480k out of the 90lt tank ,still had another 90lt tank to go
my petrol GQ used to do 130 lts for the same ks , glad I got rid of it
mechpete
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Reply By: Been-Everywhereman - Monday, May 29, 2017 at 08:33

Monday, May 29, 2017 at 08:33
Hi. I have crossed The Simpson Desert at least 10 times and have never used more than 120 litres even at the worst times when the sand is like talc (soft).
Always been diesel vehicles.
AnswerID: 611501

Reply By: Member - Buzzo - Monday, May 29, 2017 at 17:36

Monday, May 29, 2017 at 17:36
Thank you all for taking the time to reply.

My old girl is heavy enough and I didn't want to carry way more than necessary. The 95 litres for a crossing threw me a bit but I'll carry 40 litres on top of the 170 in the tanks. If the general consensus advised to take more I wouldn't hesitate.

This is the first desert trip for me and I can't wait.

Thank you.

AnswerID: 611510

Follow Up By: Deejay - Monday, May 29, 2017 at 22:45

Monday, May 29, 2017 at 22:45
Will you be overweight and illegal?
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Follow Up By: Member - William B (The Shire) - Monday, May 29, 2017 at 23:19

Monday, May 29, 2017 at 23:19
Hi Buzzo,
Enjoy the trip.
One thing to remember whatever extra fuel you carry, as soon as the fuel level in your main tank drops down start putting the extra fuel you are carrying into the main tank.
That way you reduce the weight on your roof.
William
Always planning the next trip. VKS-737 mobile 1619

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Reply By: Member - nick b - Monday, May 29, 2017 at 21:33

Monday, May 29, 2017 at 21:33
I was of the understanding the extra fuel was in the event you had to return back for some reason ??? like weather rain precaution etc .
Cheers Nick b
VKS 737 ( 0915 )

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Reply By: Bob Y. - Qld - Saturday, Jun 10, 2017 at 11:13

Saturday, Jun 10, 2017 at 11:13
Got home last night after a recent Simpson crossing. Used 80L across French Line in 2015 Landcruiser V8 ute, Birdsville to Mt Dare.

Last year, used 103L via QAA Line, French Line, Knolls Track, Rig Road, WAA Line and onto Dalhousie, then Mt Dare.

If the weather looks good then 1 jerrycan should be enough. Take plenty of warm clothes, we had one morning at -3°!!!

Bob



Seen it all, Done it all.
Can't remember most of it.

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Reply By: Member - Buzzo - Saturday, Jun 17, 2017 at 07:57

Saturday, Jun 17, 2017 at 07:57
G'day All.

Thank you again for the replies they helped.

I realise now why the question gets asked so much, because it's impossible to answer. The variation in consumptions are huge. I've never taken any interest in how much my ute used in general so had no idea of a figure to add 50% or 100% to as some information say as a guide. After making a big effort to know exactly how much I've used this trip so far it got messed up having to get rid of most of a tank full because it was full of sh@$... I put 51 litres @ $217. in at Mount Dare and got 110 km down the track before down to 40 kph flat out.....

Anyway I ended up taking an extra 20lt ( which was what got me to Oodnadatta after the bad tank full ) and used 125 litres from Birdsville to Mount Dare via the WAA line.

Best highway driving. 13lt/ 100km
First 300 km from Birdsville on WAA line. 24lt/ 100km.

BobY - that ute of yours is incredible on fuel. Is that just the crossing or from Birdsville to Mount Dare / Oodnadatta? We must have been close to crossing at the same time. I left Birdsville on the 8th June.

Deejay - I'm not sure how close to the gvm I am but it would be close to spot on. I built a new aluminium tray and canopy and have had it on the weigh bridge 3 times before hand. Lost close to 400kg after the diet.

Cheers
Steve
AnswerID: 611952

Follow Up By: Bob Y. - Qld - Saturday, Jun 17, 2017 at 09:28

Saturday, Jun 17, 2017 at 09:28
Thanks for the details on your trip over the WAA Line. We did the western half of it last year, and it was a bit tough in places. Would have been worse this year with the much softer sand conditions.

That consumption of 80L was only from Birdsville to Mt Dare, we went north from there, then east to Geosurveyors Hill and the Simpson Geocentre.

I travelled over the French Line E-W, and was hard work in places. Rough, cut up approaches and had to have 3-4 attempts on a couple of the difficult dunes. However Steve, I rarely use the heavy foot, travel at moderate speeds so hard braking is reduced, and if I pull up for Kodak moment, or a chat, I switch it off. At idle rate of 2L/hour or more, it doesn't take long to burn off enough fuel to put your economy into the ordinary class.

On the above trip to the Hill & Geocentre, consumption dropped down to 20L/100! About 5 days, mostly in 2nd gear Low Range, didn't help.

Hope you enjoyed your trip, even with the fuel dramas,

Bob

Seen it all, Done it all.
Can't remember most of it.

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Reply By: Member - Buzzo - Saturday, Jun 17, 2017 at 16:06

Saturday, Jun 17, 2017 at 16:06
G'day Bob.

I enjoyed every minute of it and felt a bit sad it was all over. Can't wait to do more of it.

The worst dune I had to tackle was the very first one from Big Red. I used to live in Esperance and did a lot of beach and dune driving, but that was a long time back. I started a lot higher than I would have there at16/18psi in the tyres at big red. That first dune was soft with the big holes that I wasn't prepared to hit at great speed. I ended up taking three goes and with the tyres down to 10/12 got over it. I left them at that and never had a problem after that just a couple with driver error.

Cheers.
Steve.
AnswerID: 611958

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