"Extended Range Fuel Tanks" Namibia Transportation Tip by GrumpyDiver

Namibia Transportation: 83 reviews and 90 photos

A number of companies rent "extended range" or "double tank" vehicles for trips to out of the way places in Namibia. I can only relate our experience, but it is my understanding that this is common practices amongst many of the companies that rent these vehicles.

The vehicles are an aftermarket conversion, where a second non-OEM (Original Equipment Manufacturer) fuel tank is installed in the vehicle. The second tank is mechanically (through fuel lines) connected to the first tank. In our case, this roughly doubled the fuel capacity of the vehicle (original capacity of 70 l and extra tank took this to 135 l) This meant that a fill up would give us between 700km and 900 km range. This lead to two strange things happened as we drove:

1. The fuel guage is connected to the original tank only and the second tank would be the one that was used first. This meant that the fuel gauge showed "Full" until the auxilliary tank was empty (roughly half the fuel) and would then act normally.

2. The connection between the tanks meant that the original fuel tank would fill normally, and once it was full, the fuel would then run into the auxilliary tank. This was a very slow process and it would take around 15 to 20 minutes to fill the auxilliary tank.

All a bit strange, but things worked. We were told to less the gas station attendent know that the truck had double tanks and he would then take appropriate action to fill up the truck,

Type: Car/Motor Home

Review Helpfulness: 2.5 out of 5 stars

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  • Written Dec 13, 2011
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