Auxiliary Fuel Tank or Jerry Cans?

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Fuel System

  • Jerry Cans (80L)

    Votes: 0 0.0%

  • Rear Auxiliary Tank (100L)

    Votes: 4 100.0%

  • Underbody Tank (40L)

    Votes: 0 0.0%
  • Total voters
    4
  • Poll closed .
Aux tank defo.

In the UK the maximum amount of additional fuel that you can legally carry in a vehicle is 20 litres in 2x10 litre metal cans OR 10 litres in 2x5 litre plastic cans.

Dunno what the regulations are in other countries or how strictly they are enforced, but its worth checking what the rules are where you are going.
 
Sorry to bump this topic up,
but it might be useful to some people what my thoughts were at the end for this:

Auxiliary Fuel tank:
Requiers extra work to fit, hence maintainance if something comes loose
Requires pump to fill main tank or switch on fuel line to switch A or B tanks
If another car needs fuel, it's hard to give it to them with this setup...
If you do not travel with the Landy all the time and use it for day-to-day use then it's extra space lost for other things (if tank is in boot for example)

Jerry cans:
You can buy from none to 10 (or more) and have the number you need for the trip you are going on
You can shift them around the boot of the car or place them on the roof (if you REALLY need to!)
It's easy to refuel another car with Jerry cans
The can be stored at home (easily) if you use the car in the city and don't need them

So after all this... I am going for Jerry cans! ;-)

Thanks in any case for all, since you ALL enlightened me to arrive to my conclusions ehhe :)

(In any case, aux fuel tanks are cooler! HAHAHHA)

Jon
 
If the aux fuel tank is higher than the bottom of the main tank; can't you just use gravity to fill it?

Redirect the fill spout to the aux tank which flows in the main one. When the spout goes click, both tanks are filled.... as long as the bottom of the aux is higher than the bottom of the main tank and the top of the aux is high than the top of the main tank.

Could that be done?
 
jwaldron said:
If the aux fuel tank is higher than the bottom of the main tank; can't you just use gravity to fill it?

Redirect the fill spout to the aux tank which flows in the main one. When the spout goes click, both tanks are filled.... as long as the bottom of the aux is higher than the bottom of the main tank and the top of the aux is high than the top of the main tank.

Could that be done?
Click to expand...

In theory yes. that is how the 40L aux wing tanks work on the 110. where this isn't the case, it is a lot of faff. therefore a 12v pump is easier to instal.

G
 
Griffdowg said:
In theory yes. that is how the 40L aux wing tanks work on the 110. where this isn't the case, it is a lot of faff. therefore a 12v pump is easier to instal.

G
Click to expand...

I get ya... so my vehicle (P38) an aux tank in the spare wheel well would work as the aux tank base would be above the main tanks draw... and the top of the aux tank would be above the main tanks top... therefore, when the aux tank is full... so is the main tank so no need for a pump (assume a one way valve on the connecting pipework or uphill everything changes).

Do people have to buy an aux fuel tnak or can you manufacture your own... then how about testing to a BS std (thinking UK here).. anyone know? I thinking of designing my own and getting a fabricator to make for me... but I'd need to tested I suppose as well afterwords?
 
Can anyone explain why the after market auxiliary fuel tanks are so ridiculously expensive. I understand some are S/S but it seems very overpriced. Does any one know of a supplier for the 100L fuel tanks for '91 defender.
 
Llew said:
Can anyone explain why the after market auxiliary fuel tanks are so ridiculously expensive. I understand some are S/S but it seems very overpriced. Does any one know of a supplier for the 100L fuel tanks for '91 defender.
Click to expand...

because they are a niche market. how many do you think they sell per year? Someone has spent many hours designing and testing them and needs to earn a living somehow.

you dont say if you have a 90 or 110 :doh: which is the most important bit. if its a 110 I know longranger do a replacement tank that sits in the rear therefore replacing the 80L one for something like 120L.

If its a 90, my sticky on the top fo the section should help add 60L to your current capacity.

G
 
120 litre main tanks are readily available in the UK in ali, ms and ss.

As far as I am aware in the UK fuel tanks have to be behind a 'firewall/bulkhead'

Wing tanks are available which are flow through into the main tank so no extra fuel pumps/valves etc.

Recently there are plastic wing tanks for 90's on the market. 30 litre(?) capacity and about half the price of equivalent metal wing tank.

Before fitting larger main tanks and/or wing tanks it is a good idea to work out what fuel capacity you actually need and how often you need the large capacity.

Some things to bear in mind. Larger main tanks not compatible with all tow bar equipment. Tank guards not readily available for larger tanks so do you double bottom it. If you run larger then normal tyres the tyres might catch on the wing tanks


HTH


Brendan
 
leeds said:
120 litre main tanks are readily available in the UK in ali, ms and ss.

As far as I am aware in the UK fuel tanks have to be behind a 'firewall/bulkhead'

Wing tanks are available which are flow through into the main tank so no extra fuel pumps/valves etc.

Recently there are plastic wing tanks for 90's on the market. 30 litre(?) capacity and about half the price of equivalent metal wing tank.

Before fitting larger main tanks and/or wing tanks it is a good idea to work out what fuel capacity you actually need and how often you need the large capacity.

Some things to bear in mind. Larger main tanks not compatible with all tow bar equipment. Tank guards not readily available for larger tanks so do you double bottom it. If you run larger then normal tyres the tyres might catch on the wing tanks


HTH


Brendan
Click to expand...

I'm after a 110 wing tank but can't find one under £150. Have you got a link to the plastic wing tanks?
 
Just looking into options again for an auxiliary fuel tank or going with jerry cans for a overland to malaysia trip later on. I have a J reg diesel defender 110 and am trying to find the correct part number for the auxiliary tank that fits under the drivers seat. The aux tank in the parts catalogue is no longer availible and I cant find a reference anywhere to what is the superceded number.
 
Llew said:
Just looking into options again for an auxiliary fuel tank or going with jerry cans for a overland to malaysia trip later on. I have a J reg diesel defender 110 and am trying to find the correct part number for the auxiliary tank that fits under the drivers seat. The aux tank in the parts catalogue is no longer availible and I cant find a reference anywhere to what is the superceded number.
Click to expand...

NRC7040?

you dont look very hard do you :boink:

NRC 7040 Defender 110'' auxillary fuel tank genuine | eBay UK

G
 
Griffdowg, I have seen the NRC 7040 items around but in the parts catalogue it doesnt refer to that number, nor on any on the usual parts websites does it offer a superceded number, I just dont want to buy the thing then find out a number of snags trying to get the thing fitted.
 
If anyone wants the plastic wing tank give me a shout.

It is highly likely that we will have one with us at the Billing show so if you want to see one in the 'flesh' so to speak. In comparison to the metal ones it is fairly light. The plastic is apparently the same as that used by LR for their current fuel tanks.


Brendan
 
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