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Old 06-26-2021, 03:11 AM   #1
Bobplouhar0@gmail.com
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Transfer tanks

What type auxiliary transfer tanks are being used, looking for a under tounel cover gravity fed aux tank
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Old 06-26-2021, 06:55 AM   #2
porthole
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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.
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Old 06-26-2021, 09:36 AM   #3
Cummins12V98
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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.


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Old 06-26-2021, 12:32 PM   #4
porthole
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Quote:
Originally Posted by Cummins12V98 View Post
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.
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Old 06-26-2021, 02:34 PM   #5
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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
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Old 06-26-2021, 03:54 PM   #6
Cummins12V98
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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.
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Old 06-26-2021, 03:52 PM   #7
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Quote:
Originally Posted by porthole View Post
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.
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Old 06-26-2021, 09:56 AM   #8
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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.
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Old 06-27-2021, 09:32 AM   #9
anijet
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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.
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Old 06-27-2021, 10:54 AM   #10
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Same fuel box I have. Except I went black. Did you go with the plug and play fuel system?
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Old 06-27-2021, 11:20 AM   #11
anijet
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Quote:
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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.
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Old 06-27-2021, 12:24 PM   #12
GTM
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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.
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Old 07-01-2021, 09:40 PM   #13
wingnut60
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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.
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Old 07-05-2021, 03:16 PM   #14
Joezilla948
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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.

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Old 07-05-2021, 03:59 PM   #15
CHAPS2018
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I installed the RDS 33 gal. $630 with the gravity feed kit. Great solution that addresses my apprehension about getting fuel on travel days.
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Old 07-07-2021, 06:07 AM   #16
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Quote:
Originally Posted by CHAPS2018 View Post
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
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Old 07-08-2021, 01:23 PM   #17
porthole
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Quote:
Originally Posted by Bobplouhar0@gmail.com View Post
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?
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Old 08-31-2021, 03:43 PM   #18
Bobplouhar0@gmail.com
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Aux tank

Quote:
Originally Posted by wingnut60 View Post
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
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Old 09-02-2021, 06:17 PM   #19
labarn
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Quote:
Originally Posted by wingnut60 View Post
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
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Old 07-05-2021, 09:28 PM   #20
Falcon
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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?
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