Thread: Management of auxiliary fuel tank systems

I always fill both tanks and transfer from the second tank when the fuel light comes on. The number of KM I do means that the fill up period is a bit less than fortnightly.
If I was parking the vehicle for I while I would top up both tanks as the risk of condensation in the tanks is then reduced.

Regards,
Tote

Originally Posted by Lotz-A-Landies

The computer distance to empty and fuel usage/ecomomy readings are in error.

It's the OL gravity fill tank I'm talking about. You fill the auxillary tank which fills the main tank and keeps it topped up so the computer recognises the fill but not the extra fuel that keeps draining into it. The fuel gauge on the dash also stays full until the aux tank is empty.

Or am I very wrong?

Ours is wrong anyway, actually it's always been wrong even before we got the auxiliary tank, last time I filled it,(both tanks) distance to empty showed up as 435k, it's never showed anywhere near what it should show.

The gauge stays full until the auxiliary is empty, yes, but I always knew that would be the case and I don't mind that, this means it tells you that you have another 600 to 800ks left depending on whether your towing or offroad, great if your remote and fuel stops are not as regular, one thing I did notice, once the fuel gauge starts to drop, the distance to empty rises, then drops as you get closer to half, that tells me the computer is not very accurate, but according to Purnells that's OK and it's all the accessories that is the problem, they are causing all our fuel problems, including economy

I know there is a problem, because we have been getting the same economy since we bought the car, before and after fitting the accessories, trouble is knowone will listen, we had one dealer in SA that said there was a problem and he even argued the point with LRA, but the dealers here reckon he's wrong and the accessories are to blame.

So the OL tank is fine, the only error is if I don't fill the car properly, it needs to be filled to allow air pockets to clear, you do this by listening for the air escaping to stop then keep filling, we didn't want a tank with a pump, just something else to fail and they do fail on a regular basis, not something you want to happen in a remote area.

Baz.