work2much
On the Road
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Joined: 12/30/2006
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95 gallon transfer with tool box. 2 birds... Since installing we haven't fueled while hitched, something I don't really like doing.
With a short bed you may have to go smaller and remember that these boxes full of fuel are heavy so account for that in your payload/pin weigh calcs.
![[image]](https://i.imgur.com/dBqfGail.jpg)
2022 Ram 3500 Laramie CTD DRW Crew 4x4 Aisin 4:10 Air ride.
2020 Grand Design Solitude 2930RL 2520 watts solar. 600ah lithium. Magnum 4000 watt inverter.
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Durb
NW
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Joined: 01/15/2016
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My Aluminum Tank Industry 46 gallon tank can be purchased for $630 which includes the Fuel Shotz filler hose system. I installed it 2 years ago, fuel cost savings will have it paid for early next year. and I only tow about 6k miles per year. Don't know where the comment about never recouping the cost comes from. Since installing, I have only filled my tanks at Costco after a round trip. Fuel on the coast or in the mountains can be 50 cents to a dollar per gallon higher. No electric pump either. I feel it was a good add.
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SDcampowneroperator
South Dakota
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Joined: 01/25/2011
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We have had an in bed auxiliary tank in our 8' bed trucks for over 35 years. Never have I connected the tank to the truck always used with a transfer pump. , as we also switched fuel according to season.
When RVing, on a long or snowbirding trip, Diesel gives long range(1100 mi. +) and the ability to fuel when and where we chose.
In our business season when we could not travel much I switched to gasoline to fuel mowers, gas SxS, gennys and such.
For us it is financially worthwhile as I have welded every tank and can commonly save $. 20-50/ gal fuelling .
A meter and water block filter on the pump solved use and condensation issues.
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Splashers3
Oakville, MD
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Joined: 06/12/2008
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I have a 40 gal Titan high polymer tank in the bed. It came with its own pump system and all I need to do is press a button in the cab. It will add into the truck tank 5 gal in a 10 min span and then shut off. I repeat if I want more. Of course I can shut it off before 10 min if I want. The in cab controller has 10 small LEDs, when lit, show how full the tank is - also making it easy to know how much I need to add when I refill it....should it not be empty.
It was really easy to change out the inline filter located above the tank, within a compartment. I also order a locking cap.
They make a 50 Gal version, but I wanted the extra space on the sidewalls (The 40 gal version is not as wide as the 50 gal.)
I love the extra capacity.
2017 GMC 3500 Sierra Denali, C/C, D/A, DRW, w/40gal Aux tank, 18K B&W Patriot.
2019 Cedar Creek Hathaway, 34RL2 - w/Bells & Whistles and disc brakes
Traded 2009 Cedar Creek Silverback, GII, 32 WRL
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BarryG20
Castle Rock, Colorado
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Joined: 07/14/2015
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Titan makes a 55 gallon midship replacement for that truck. Don’t lose any bed space that way if that is important to you
2016 Jayco 28.5 RLTS
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Bionic Man
USA
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Joined: 04/03/2009
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Not trying to be "that guy", but there are many threads on this. If you search, you will find the same answers. Those of us that have them for the most part really like them. Those that have never used them will talk about how it is a waste, and you have to stop for biological reasons, so just stop when getting fuel. You will almost certainly even find someone who posts a photo of a single yellow 5 gallon can that they claim is equivalent to a transfer tank......
Anyway, I have a 60 gallon RDS tank/tool box combo. Love it. Great investment. No need for a fuel pump, gravity feed works fine. Choose where you stop instead of stopping when you have to.
* This post was
edited 05/28/21 08:19am by Bionic Man *
2012 RAM 3500 Laramie Longhorn DRW CC 4x4 Max Tow, Cummins HO, 60 gallon RDS aux fuel tank, Reese 18k Elite hitch
2003 Dodge Ram 3500 QC SB 4x4 Cummins HO NV5600 with Smarty JR, Jacobs EB (sold)
2002 Gulf Stream Sea Hawk 29FRB with Honda EV6010
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TXiceman
Bryan, TX
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Joined: 11/17/2000
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I Have a 40 gallon RDS gravity feed and would have loved to had a larger one, BUT the weight of the extra fuel would have put me over my trucks rear axle weight rating limit.
With a 3/4 ton truck, be very careful with your weights to be sure you do mot exceed the axle weight rating.
Ken
Amateur Radio Operator.
2013 HitchHiker 38RLRSB Champagne (FORSALE), toted with a 2012, F350, 6.7L PSD, Crewcab, dually. 3.73 axle (truck is sold), FORMER Full Time RVer. Travel with a standard schnauzer and a Timneh African Gray parrot
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thomas201
Eastern Panhandle WV
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Joined: 08/21/2014
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Secret bonus, a full aux makes my truck ride better. I saw no change in fuel mileage per gallon, before vs after tank install.
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valhalla360
No paticular place.
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Joined: 08/19/2009
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TimnJo wrote: I too have a steel tank but don't have an additional water filter and haven't had any water in fuel issues, even after leaving it empty all winter. I put an inline electric fuel shutoff with a dash switch for easier control of when the auxiliary flows into the main.
Water condensation in a fuel tank is a bit of a myth. Just enough truth to make it believable.
Ran the numbers one time for our 220gal tank on our boat. Over the course of a 6 month winter, if the tank was almost empty and air changed over completely every day and 100% of the moisture condensed (ie: very conservative assumptions), the amount of water that would condense out would be equivalent to a few pea size drops.
Water does get into boat fuel tanks but usually around fittings that are mounted flush to the deck or it came with the fuel.
It's not going to hurt to add a filter but if you find water, it's unlikely to be from condensation.
Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV
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markc
Scranton,NC
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Joined: 12/02/2003
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Thanks for all the replies, very helpful. Hope to see y’all on the road.
Wildcat 327 RE 5th-wheel
F-250 KR-CC 4x4 PSD
And a Yellow Lab "Sunny"
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