Hi Ash1980,,,We have a 4500 petrol/lpg Auto Nissan Patrol and tow our camp trailer.
As a rule, we seldom use petrol, other than to start her on cold mornings and give it the odd 10....15km every now & then to give the petrol a run (infact, she goes far better on LPG).
We get approx 400km to the 80ltr LPG (100ltr tank,,,80% full)....petrol we get far better milage but when it comes to 'full-up' time at the servo's....LPG leaves petrol for dead....infact, I wouldn't recommend Auto Patrol 4500 on petrol.....great wagon but pretty greedy on the fuel....manual is cheaper if you do go Patrols....Nothing will beat them off road.(Avis won't drive manuals....so I had to get an Auto)
Now, thats great especially when we go off road.......otherwise we enjoy pulling the trailer behind our campervan.....this means we can take all the stuff we 'need' in the van....and all the stuff we ''want'' in the trailer,,,,Excellent for stopping for a cuppa or one night stays...pack up & off again.
One more thing to consider ,if you do go LPG, it can get abit scarey wondering how far to the next servo that sells LPG out in the backblocks.....and your needles heading backwards.
Sounds like you guys are in for a great trip.....enjoy
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