Thanks for the reply guys.
The first filter lasted about 70,000km (I replaced it after the 70k service as Toyota tell me they never get replaced) until the warning light comes on.
We were about 500km out of Perth and filled up at a Caltex, 200km later the fuel light was on. Filter was maybe 2000km old.
I normally fill up with Shell Diesel. I've found that I get more range from Shell than with Caltex. I've also heard Caltex/Woolies have started putting some anti foam stuff in their fuel to make it pump faster (not sure how true that is).
I bought one of these yesterday (
http://www.gumtree.com.au/s-ad/malaga/o ... 1093506439). Cost $125 but it flows 40ltr per minute which means we should be able to refuel in about 2 minutes
Ill fit an Anderson plug to it tonight and I can connect it directly to the back of the ute or even the camper if I have too.
As for the weight, the tray will basically be empty (except for a folder up table, solar panels and some camp chairs). Everything else is in the camper so we should be well under weight.
I have 3 x 60ltr drums in the back now (pushed right up towards the front of the tray) and tied down with a ratchet strap. So that's about 190kg of extra weight. Camper weights about 1800kg fully loaded.
Hoping with the 80ltr the Ute has and the 120ltr of extra fuel we should get close to 2000km before we need to refuel.
I also bought 2 new filters to take with me just in case