Transfer tanks

[Bobplouhar0@gmail.com]

What type auxiliary transfer tanks are being used, looking for a under tounel cover gravity fed aux tank

[porthole]

Depends on the cover.
I had a roller cover in my last truck so the biggest tank I could use was a 45 gallon RDS tank.

If I can get one delivered without being damaged I will be using a 60 gallon tank with an integrated tool box on top for my next tank.

Once that tank is installed and I figure out my transfer solution to the RV (diesel generator) I’ll pick a cover that allows the best use.

[Cummins12V98]

Personally I would never want to loose bed space.

If adding fuel capacity I would highly advise the TITAN 55 gallon replacement tank. Until I decide to do the TITAN I simply carry a (modified) 5 in my bed height 30" front to back tool box.

https://i.imgur.com/Q8ys3p0l.jpg
https://i.imgur.com/tm6c0TDl.jpg

[GTM]

I have been using a Fuel box transfer tank. www.thefuelbox.com. Have had it about a year. I like having the extra 50 gallons of fuel plus locking storage.

[porthole]

If adding fuel capacity I would highly advise the TITAN



I also had a Titan 65 in the last truck, the factory tank then was 37. The Titan was a great addition. Then I added the 45 bed tank.

My new truck has a 48 factory so the Titan has less value for the upgrade.

[Notanlines]

No reason to go to a Titan at $1500 to gain 7 gallons. We have used the RDS 45 gallon with the diesel connection kit on four different diesels. All without a flaw. Here's a place to start. http://www.rdsaluminum.com/auto-auxiliary.html

[Cummins12V98]

I also had a Titan 65 in the last truck, the factory tank then was 37. The Titan was a great addition. Then I added the 45 bed tank.

My new truck has a 48 factory so the Titan has less value for the upgrade.

I think RAM offers a 50 now. If I had that I would not consider adding any more.

[Cummins12V98]

No reason to go to a Titan at $1500 to gain 7 gallons. We have used the RDS 45 gallon with the diesel connection kit on four different diesels. All without a flaw. Here's a place to start. http://www.rdsaluminum.com/auto-auxiliary.html


55-32=23 gallons, well worth it to me over any other method of storage besides my trusty 5.

[anijet]

I have had three Transfer Flow but they got too expensive. Current truck has a Fuel Box approx. 55 gal. Plan to do the same with the next truck.

[GTM]

Same fuel box I have. Except I went black. Did you go with the plug and play fuel system?

[anijet]

Same fuel box I have. Except I went black. Did you go with the plug and play fuel system?


I did. Since I'm only 25 miles from them it makes it easy instead of 200 miles to Transfer Flow. Price was (don't know currently) much better and I don't notice any difference in quality.

[GTM]

I have the plug and play also. It works it's just sometimes it transfers when it feels like it not at just a certain level. But it does work.

[wingnut60]

KSH in Lake Havasu built me a tank that fit under the canister of the Retrax cover on my '17 450. 48 + 50 gallons was a huge factor in being able to shop fuel prices. It transferred by elec pump controlled off #1 upfitter switch.

[Joezilla948]

I just had installed the Titan 55 gallon in bed tank with the pushbutton control on my lower dash. I have had the Transfer Flow and the ATTA computer controlled solutions on different past trucks. I really like having the ability to transfer fuel when I want. I have it connected to my Auxiliary Switch #1. It was $1300 installed. 55+48 makes 103ish gallons of fuel. I love it.

Joe

[CHAPS2018]

I installed the RDS 33 gal. $630 with the gravity feed kit. Great solution that addresses my apprehension about getting fuel on travel days.

[Falcon]

Like the OP, I'm looking for a tank that will fit under my rolling tonneau cover. I fill up and pull away from the pump and immediately start looking for the next fuel stop. I'm lucky to get 200 miles. I have about 60" width without crowding it for plumbing. I'm restricted to 18" height, and that includes any filler cap or anything else sticking up like a pump. And I can only have about 20" front to back because of my hitch base. I have scoured the internet and found nothing that will fit. Any one know where us RVers can get one manufactured to specific dimensions?

[razahoryin@att.net]

I have to second KSH out of lake Havasu
60 gal custom fit under my American truck cover
Roll top.. canister…it provides amazing flexibility
Mine was under $1000 and all custom

[Notanlines]

Here's a good start along with Joe's suggestion: https://www.tanksinc.com/

[GTM]

https://thefuelbox.com/product/ft50-50-gal/

[Falcon]

Here's a good start along with Joe's suggestion: https://www.tanksinc.com/

These all look like they are factory replacement tanks for restorations and similar work. The newest tank I found was 1991, mostly for vintage autos.

[Notanlines]

These all look like they are factory replacement tanks for restorations and similar work. The newest tank I found was 1991, mostly for vintage autos.

Did you call them? I understand from the car people here that they do custom work, not just replacement.

[Bobplouhar0@gmail.com]

I installed the RDS 33 gal. $630 with the gravity feed kit. Great solution that addresses my apprehension about getting fuel on travel days.

I am waiting on my RDS TRANSFER TANK can I leave the gravity feed valve open without fuel back up and do I need a fuel filter on the line

[Notanlines]

Bob, we use a common, in line canister filter and just leave the valve open all the time. The filter does slow delivery rate.

[Cummins12V98]

Curious why you would need a filter on an additional tank?

[GTM]

An extra filter is cheap insurance

[Notanlines]

He asked and I answered. Give me three reasons why an inline filter would be bad in this situation. Oh, that's right, you don't have this situation.
This system simply isn't for you. But it is for thousands of others.

[Cummins12V98]

New tank so it's clean, fuel that is pumped into main tank is not pre filtered. Engine has either one or two very good filters on a modern Diesel Truck. Not thinking it makes any sense. But hey I don't have one so I shouldn't ask questions or make comments.

[porthole]

I am waiting on my RDS TRANSFER TANK can I leave the gravity feed valve open without fuel back up and do I need a fuel filter on the line

What truck do you have?

[OCB]

I'm looking for a tank that will fit under my rolling tonneau cover. I'm restricted to 18" height, and that includes any filler cap or anything else sticking up like a pump. And I can only have about 20" front to back because of my hitch base.
Another option if the custom fuel tank is to expensive is replace rolling cover with one that gives the extra height.

https://tonneaucoversworld.com/p/truxedo-edge-tonneau-cover/
On a prior truck, the RDS 40 gal tank worked for me but I had the hitch clearance.
Clay

[Bobplouhar0@gmail.com]

KSH in Lake Havasu built me a tank that fit under the canister of the Retrax cover on my '17 450. 48 + 50 gallons was a huge factor in being able to shop fuel prices. It transferred by elec pump controlled off #1 upfitter switch.

Went with RDS gravity feed 50 gallon with toolbox love it fits under tunnelcover leave valve open no issues or pump

[labarn]

KSH in Lake Havasu built me a tank that fit under the canister of the Retrax cover on my '17 450. 48 + 50 gallons was a huge factor in being able to shop fuel prices. It transferred by elec pump controlled off #1 upfitter switch.


same here since were in Az and had a new truck and still really like to carry 55 extra gallons. It was made in march of 06 so we feel it was a bargain. full and ready to hit the road this month . Labarn

[Pvsaint]

I use the RDS 40 gallon fuel tank with the top tool box and it fits under the tonneau cover. The manual valve is left open but I use an electric solenoid valve that is controlled from the cab. A water separation / fuel filter is installed to take out any condensation that may occur in the aluminum tank.

[Edd505]

Buddy just installed a 90gallon below bed rail in a 2021 GMC. Not sure the brand but I can ask if your interested.

[Falcon]

Like the OP, I'm looking for a tank that will fit under my rolling tonneau cover. I fill up and pull away from the pump and immediately start looking for the next fuel stop. I'm lucky to get 200 miles. I have about 60" width without crowding it for plumbing. I'm restricted to 18" height, and that includes any filler cap or anything else sticking up like a pump. And I can only have about 20" front to back because of my hitch base. I have scoured the internet and found nothing that will fit. Any one know where us RVers can get one manufactured to specific dimensions?

Update: After a few suggestions to contact KSH Tanks in Lake Havasu, I did just that. They sent me a template which I filled out with yr/make/model and my required dimensions. They even called me with further clarification on things that I didn't think of. They really know their business. I picked it up for $750 but the gauge and one-way vent and tax brought it to about $860. Reasonable for a custom fabricated tank that fits my exact requirements, and adds 70 gallons to extend my range beyond 800 miles. Happy.

[Edd505]

Update: After a few suggestions to contact KSH Tanks in Lake Havasu, I did just that. They sent me a template which I filled out with yr/make/model and my required dimensions. They even called me with further clarification on things that I didn't think of. They really know their business. I picked it up for $750 but the gauge and one-way vent and tax brought it to about $860. Reasonable for a custom fabricated tank that fits my exact requirements, and adds 70 gallons to extend my range beyond 800 miles. Happy.


Pictures? Sounds reasonable, mine was not custom and I paid more than that.