Thread: extra tank in the D3

Hi Connock. More data required I think. Where is the tank located ? If it sits higher and is purely gravity feed, your OE fuel gauge will just read full for longer, and once the fuel from the reserve tank has drained out, you are back to a std setup and fuel readings.
Others may be able to advise if the fuel gauge can be recalibrated, I suspect not. I cannot see any practical way it could work. It will likely be linked to a sender in the main tank, and as such can only read what is in that tank.

Originally Posted by ADMIRAL

Hi Connock. More data required I think. Where is the tank located ? If it sits higher and is purely gravity feed, your OE fuel gauge will just read full for longer, and once the fuel from the reserve tank has drained out, you are back to a std setup and fuel readings.
Others may be able to advise if the fuel gauge can be recalibrated, I suspect not. I cannot see any practical way it could work. It will likely be linked to a sender in the main tank, and as such can only read what is in that tank.

Agreed. L/100km won't be affected as that's calcualted from fuel used not fuel stored. Odd way of doing it, most units use an electric pump and have a seperate gauge.

It is perhaps a strange way for LR but quite the norm for say cruisers. Its a tank from Opposite Lock and it siphens to the main tank and is still fitted where the spare useto go. Thats right Admiral the gauge would just stay on full and start comming down when the extra tank is empty.
So guys in your oppinions should I just get (have not payed for tank yet ) a 110lt tank with the transfer pump?

Originally Posted by connock

It is perhaps a strange way for LR but quite the norm for say cruisers. Its a tank from Opposite Lock and it siphens to the main tank and is still fitted where the spare useto go. Thats right Admiral the gauge would just stay on full and start comming down when the extra tank is empty.
So guys in your oppinions should I just get (have not payed for tank yet ) a 110lt tank with the transfer pump?

If it's a siphon tank, it only need to have the smallest of air leaks in the system and it will not empty. I'd opt for the pump feed. If it's gravity feed, it may be OK.

Ian

Originally Posted by connock

It is perhaps a strange way for LR but quite the norm for say cruisers. Its a tank from Opposite Lock and it siphens to the main tank and is still fitted where the spare useto go. Thats right Admiral the gauge would just stay on full and start comming down when the extra tank is empty.
So guys in your oppinions should I just get (have not payed for tank yet ) a 110lt tank with the transfer pump?

As above, and I like the second gauge aspect. If the pump fails you can always manually transfer.

I agree with those above.

I must admit to being uncomfortable at being in "la la" land, not knowing how much, if any, fuel is left in the auxiliary tank.

Best Wishes,
Peter

Thanks guys
you all made my mind up and I will go for the transfer pump type.
That was easy, love this forum.

A good idea I reckon to go with something like the longranger which has a pump and gauge.

I assume it is not a syphon system, but a gravity setup.

If so surely the bottom of the tank will be lower than the axle (moving part)
SO you may have a vulnerable hose running between the two tanks.

If the hose comes off do both tanks leak fuel out?