Simpson trip

O Dog, Google maps says Mt Dare to Birdsville, 1209 Km, via Maree......... LOL

Mt Dare to Birdsville via direct route( French Line) is about 500 K's, you should be fine........

Odog

You don't mention if the last trip (13/100) was on sand. But I would allow a minimum of 30% above "normal" usage.

Cheers, Baz - The Landy

Ok I don't have a Prado but a 75 series Troopy 1 Hz naturally asperated, last year from Coober Pede to Birdsville I used 150L(6.47Km/L).
But I was doing 110km/hr between Coober Pede and Oodnadatta so that chewed up a bit more than usual.

I was very surprised how little I used.

Cheers

Dunc.

I'd say it was completely unnecessary Odog , my thirsty petrol patrol can do it on main tank only using 24lt/100km . You don't say if its petrol/desiel so I assume petrol and I'm thinking you have 150lt anyway.

And not a good idea to carry unnecessary weight you don't need.

What is a good idea is that you have to be able to get back to your start if something goes wrong.

Its easy if you have a means of topping up 1 tank from a companion so 1 car can get back.

On one of our crossings we got from Mt Dare all the way to Eyre creek when weather closed everything and we had to drive back to Mt Dare and no one else was in the desert.

More recently I went with 2 desials (I've got lots of ways to spell that) , we were having an undocumented fuel range run and 1000km into it one ran out , but between the 2 of them they couldn't drain fuel to put some into the car that ran out. (nor even an empty container)

In my car I have drains in both my tanks but they wouldn't accept my offer of free petrol.

A diesel 150 Prado, not towing and going from Mt Dare to Birdsville will need about 80 litres max. With a bit of care, you could probably manage a double crossing!

We did it west to east in May in a 200 series diesel, heavily loaded with a 1200 kilo trailer and managed 127 litres between Mt Dare and Birdsville.
The sand at that time was quite firm because of rain earlier in the year and the track being open only for a month. I am sure we'd have used a lot more if the the sand had been softer. If you get some rain, you may be in for some detours and should perhaps carry enough fuel for that.
Keith

I'm very surprised at the comments 80lt odd BV to MT Dare, about 550km.
That is very good economy for desert sand driving.

I've done it a few times and usually get around the 100lt mark on a good run, a little more going WAA or part Rig etc.

Did part of FL in May this year, Erabena - Mt Dare, was very washed out west end, but all fixed now, still corroed bad, and go Bloods Ck, though longer, the boulder field is probably shocking still.

We did FL again just July, and it was really rough, slow, very undulating.
Was also busy as with traffic.

Going Inna- Warburton - Rig Rd - FL to Dal / Ood in a couple of weeks for something different.

I have a 150 series diesel Prado. I used 93 litres from Birdsville to Mt Dare across the French Line. Don't bother taking jerry cans, it's just extra weight that you don't need.

Some good advice here: http://www.mtdare.com.au/the-australian-outback

Driving a Pajero, not a Prado.
Did a bit of detouring for a 645 km Mt Dare to Birdsville trip and used 144 litres August last year.
I think you will be fine.