Okay I just bought a used 2016 Ford F250 short bed with a 6,7 diesel engine. Just discovered it has a 26 gallon fuel tank, Thinking about buying a 30 gallon tank from Tractor Supply and placing it in the bed behind the cab. It sits below the bedrails so it won't interfere with the fifthwheel. My son told me to run a fuel line from the tank to the vent tube at the filler neck with a cut off valve in the line and when I want fuel to go into the factory tank just open the valve and it will flow in by gravity. My question, has anyone done this? It seems to me the vent tube is there for a reason, stopping it up with fuel may cause some issues.

With these newer vehicles, even using an aftermarket fuel cap can have an adverse affect. Many others add extra fuel tanks, so there's got to be a way.Not a wt cop, but you may want to see what's left for RAWR/max tire load, before adding heavy tank of fuel.Jerry

I installed a low profile tank in the bed in front of the hitch. I purchased at Northern ToolSo far so good

Quite a few folks have done this on here. I found a 50 gallon RDS tank on CL, and plumbed it through a 30 micron fuel/water separator into a small 12 volt diesel fuel pump and into a 90 degree brass elbow at the filler neck close to the cap.I have a switch on the dashboard I use to fill as I travel. I do use a shutoff valve where it exits the RDS tank. I do have to be mindful enough to turn it off when my fuel gauge reads full.

I have a 30 gallon tank It came with an adapter that went into the main fuel line at the filler. So I still have my vent tube. Later put a fuel pump on it and seems to work better

I love using an auxiliary tank. I'm on my second RDS.This is what flows mine. Both tanks, both systems. Never a problem. Leave it on or go back and forth. Makes no difference. Install Kit

Fuel tank in bed of truck | Good Sam Community

25 Replies

lawnspecialties
Explorer
Mar 17, 2017
I love using an auxiliary tank. I'm on my second RDS.

This is what flows mine. Both tanks, both systems. Never a problem. Leave it on or go back and forth. Makes no difference.

Install Kit
dennis1949
Explorer
Mar 17, 2017
I have a 30 gallon tank It came with an adapter that went into the main fuel line at the filler. So I still have my vent tube. Later put a fuel pump on it and seems to work better
Tiger02
Explorer
Mar 17, 2017
Quite a few folks have done this on here. I found a 50 gallon RDS tank on CL, and plumbed it through a 30 micron fuel/water separator into a small 12 volt diesel fuel pump and into a 90 degree brass elbow at the filler neck close to the cap.

I have a switch on the dashboard I use to fill as I travel. I do use a shutoff valve where it exits the RDS tank. I do have to be mindful enough to turn it off when my fuel gauge reads full.
Etstorm
Explorer
Mar 17, 2017
I installed a low profile tank in the bed in front of the hitch. I purchased at Northern Tool

So far so good
MFL
Nomad II
Mar 17, 2017
With these newer vehicles, even using an aftermarket fuel cap can have an adverse affect. Many others add extra fuel tanks, so there's got to be a way.

Not a wt cop, but you may want to see what's left for RAWR/max tire load, before adding heavy tank of fuel.

Jerry

Forum Discussion

Fuel tank in bed of truck

25 Replies

About Travel Trailer Group

Related Content

Auxiliary fuel tank

Additional fuel tank

AUXILiARY FUEL TANK

Truck camper match

Replace OEM fuel tank?