add on fuel tanks
Last year we went on a trip to New Mexico. I was towing a 38 ft Keeston Rapture with my 2012 F350 with the 6.7 engine. Going through Nebraska we hit very strong head winds and my MMG went from 10.5 to...
Forum Discussion
big bird 2 wrote:
Many states have laws on how you can feed fuel to the regular fuel tank. A simple gravity feed with an on/off switch is outlawed in many states and is very dangerous. An auto cut-off is the most reliable and is more dollars.
Actually, state laws have nothing to do with this issue. Transportation and use of flammable liquids and gases on public highways is set by the DOT. And the regulation is something to the effect "gravity feed directly to the engine is illegal". I don't think there is anything restricting gravity feed between two tanks. There is a different issue that separates gas from diesel fueled vehicles. Gas fuel tanks must have the outlet port higher than the normal fuel level when the tank is full, this makes gravity feed impossible even between tanks for gas vehicles. Diesel tanks are allowed to have an outlet port on the bottom of the tank and therefore gravity feed from one tank to another is legal. Finally, there is another regulation that fines aftermarket suppliers if their system causes fuel to leak from any part of the system.
