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Post Info TOPIC: Auxiliary Fuel Tank


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Auxiliary Fuel Tank


We are looking to add an auxiliary fuel tank to the bed of our Ram 3500.  Having read some older posts on this subject, it seems some tanks are better quality than others.  We were looking at a Northern Tools 32 gallon tank that fits the dimensions of our bed under the rolling bed cover.  Are there any other brands that we should explore?  Also, any ideas about where to get an auxiliary tank installed?  Any info is appreciated.

Frank



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Barb and Frank

2016 Landmark Key West

2016 Ram 3500/Cummins Diesel/4WD



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Frank:

The first criteria is: Does the tank meet DOT regulations in all the US and Canada.  For example, if the tank is gravity fed to the main tank, as one key point, then it isn't legal for highway use.

ATA and Transfer-Flow tanks are "50 State Legal" -  and safe.  I don't know about the ones from Northern Tool / Tractor Supply, etc.  one way or another.  But some of those tanks are only "legal" off-road - i.e. on a farm for example.

Better quality, highway legal tanks are also baffled and pressure tested to meet DOT regulations.  Likewise an important factor.

This is a big deal if you were ever in an accident.  Not only as to safety but as to legal liability.  

That said, make sure anything you install is DOT legal.  They're probably more expensive - for a good reason.

Bill

Edited to add: Transfer Flow and others may still make a replacement tank for the OEM tank which could give you almost as much additional fuel as the 32 gallon aux tank you mentioned.  However, if I were doing it, and I have 3 times, I'd go with at least a 50 gallon tank which should fit under the cover.  Transfer Flow made one of those.  Haven't looked recently.  This isn't about how long one goes without stopping to use the rest room.  It's a convenience thing allowing one not to have to fill up everyday, go to a truck stop or bypass expensive fuel while not having "range anxiety."  

I am assuming in all this your truck is good GVWR / RAWR wise to carry any additional fuel with the 5er.  While that shouldn't be an issue with the Landmark I'd just make sure.



-- Edited by Bill and Linda on Friday 9th of November 2018 01:38:13 PM

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Bill & Linda
2014 New Horizons Majestic F37RLTSS 96

2016 RAM 5500HD \ 4-Wheel Drive \ Link Air Ride
Classy Chassis RV Hauler Bed Conversion \ Aux Fuel Tank 



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I simply carry a 5 gallon can of Diesel, I have needed it ONCE. My truck has a 32 gallon tank also.

"IF" I were to do anything it would be the TITAN 55 gallon replacement tank. I would never want my bed compromised with a tank.

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2016 Mobile Suites 39TKSB3 "Highly Elited"

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Barb and Frank wrote:

  Also, any ideas about where to get an auxiliary tank installed?  Any info is appreciated.

Frank


 Frank: To answer this question which I should have done in the first place:

https://www.transferflow.com/installation

https://www.transferflow.com/shop/product/0800116625

Mine worked flawlessly for years.  Totally worth the price in Alaska and Canada alone. Saved a bunch of money and a "long walk."  5 gallons, which would have added only about 40 miles of towing, wouldn't have worked.  Not by a long shot.  Naturally, YMMV.  Get what works for you.  Just make sure its legal.

Bill 



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Bill & Linda
2014 New Horizons Majestic F37RLTSS 96

2016 RAM 5500HD \ 4-Wheel Drive \ Link Air Ride
Classy Chassis RV Hauler Bed Conversion \ Aux Fuel Tank 



RV-Dreams Family Member

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Bill,

Thanks for the information - very helpful.  I am happy to see there are so many places across the US to have an auxiliary tank installed.  We will be sure to buy a DOT tank - I can see the importance of that.  I am looking forward to not having to worry about filling up on travel days.

Thanks again,

Frank



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Barb and Frank

2016 Landmark Key West

2016 Ram 3500/Cummins Diesel/4WD

R12


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Bill and Linda wrote:

Frank:

The first criteria is: Does the tank meet DOT regulations in all the US and Canada.  For example, if the tank is gravity fed to the main tank, as one key point, then it isn't legal for highway use.

ATA and Transfer-Flow tanks are "50 State Legal" -  and safe.  I don't know about the ones from Northern Tool / Tractor Supply, etc.  one way or another.  But some of those tanks are only "legal" off-road - i.e. on a farm for example.



-- Edited by Bill and Linda on Friday 9th of November 2018 01:38:13 PM


 Federal Motor Carrier Safety Regulations 393.65 (d) prohibits a system from supplying fuel by gravity directly to the carburetor or injectors.

If the auxiliary tank supplies fuel to the OEM fill tube it is legal to use. The "Diesel Install Kit for Auxiliary Fuel Tank" from Northern Tool contains a check valve to prevent over filling and feeds into the fill tube. This makes it legal to use on the road.



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Paul

'13 38TKSB DRV Mobile Suites



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Since we are also considering an Aux fuel tank option, we had originally thought as you have. Recently the TITAN tank as mentioned by Cummins12v98 came across our radar.  Since we are considering at least two trips to Alaska over our planned lifestyle change that may begin as soon as next year this very flexible fuel option has now been budgeted. The TITAN 55 gal. tank is price competitive with the tanks also being mentioned by others. I like the idea of free bed space in the truck. Another "dreamer" on the this forum had the install done... he is very satisfied with it according to reports. 

FWIW



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Cummins,

Thanks for the info - I thought the pricing on a replacement tank would be much higher.  This has opened up a new possibility.  I like the idea of saving the space in the truck bed for other things.  A 55 gallon tank should get us anywhere we want to go in a   single day.

Frank



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Barb and Frank

2016 Landmark Key West

2016 Ram 3500/Cummins Diesel/4WD



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FWIW ... our travel days are typically 200 miles or less, so I rarely have to find fuel with the rig attached. I can see advantages to having extra capacity but for us, the expense and trouble just isn't worth it  ... to us ... YMMV.



-- Edited by RonC on Saturday 10th of November 2018 02:35:41 PM

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Full Timers class of 2016



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RonC wrote:

FWIW ... our travel days are typically 200 miles or less, so I rarely have to find fuel with the rig attached. I can see advantages to having extra capacity but for us, the expense and trouble just isn't worth it  ... to us ... YMMV.



-- Edited by RonC on Saturday 10th of November 2018 02:35:41 PM


 + 1 

We try hard to keep it betwpeen 200-250 miles. With a 36 gallon tank ( an average of 10.2 mpg over the last 10,000 miles) we have plenty for the days trip. The only advantage I can see is making a good buy on diesel. But then one needs to factor in the extra money for the tank and what that adds to the costs per mile. But again, each to their own. 



-- Edited by Rickl on Saturday 10th of November 2018 05:38:04 PM

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2015 Ram 3500 6.7L DRW



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Frank:

Here's Rob's post with the link for the Titan 55 tank should it be helpful.  He's been happy with this choice for his application in his new 3500HD Ram.

Bill

Bill and Linda wrote:
Rob_Fla wrote:

I switched my 32 Gallon OEM Tank on my RAM 3500HD to a aftermarket Titan 55 Gallon Tank.
So far been very happy with the switch and the 55 Gallon range is quite enough for us without an aux fuel tank.
But again, everybody has different needs and wants for their lifestyle and budget.


 


Bill, I replaced the OEM "Mid-Ship" 32 Gallon Fuel Tank with the Titan Products 55 Gallon "Mid-Ship" Fuel Tank  http://titanfueltanks.com/products/mid-ship-fuel-tanks?find=2018-dodge-ram-3500-3389

image1_zps02czdpps.jpeg

Remove the OEM sending unit, filler and vent hoses from OEM Tank and install on new Titan Tank]

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2014 Redwood 38FL MorRyde IS & MorRyde Pin Box

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Bill & Linda
2014 New Horizons Majestic F37RLTSS 96

2016 RAM 5500HD \ 4-Wheel Drive \ Link Air Ride
Classy Chassis RV Hauler Bed Conversion \ Aux Fuel Tank 



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We have an aux fuel tank. Our experience using the extra fuel capacity has been very favorable, during the 4 1/2 years that we have been full timing. Due to family events and family care needs, we have needed to travel back to the northeast U.S. a number of times. Our travel patterns often have us traveling 800 to 1,000 miles between destinations. Often times we are traveling 2 or 3 days to cover this distance. Having the extra tank allows us to tow for 750 or 800 miles between fueling. We like to say that the extra fuel takes away one of the "variables" on travel days. With the size of our rig and truck, our only option for fueling is truck stops. With the higher cost, often lack of parking space, the need to prepay at many of the national truckstop chains, etc., we prefer to fuel up when we are not towing. Also, if we can travel for a couple of days without fueling, we can stay hitched up for overnight stops. Again, as Bill said, a lot depends on your travel style, and the excess capacity in your truck. For us, the aux fuel tank has made our lives easier. Ed

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Thanks to everyone for the great info - and to Bill for the pictures of the OEM replacement tank.  Replacing the OEM tank seems ideal since we won’t be taking up space in the truck bed with an aux tank.  Plus, it will give us just enough extra fuel to make it through a typical  driving day.  We like to stay under 250 miles per day - but there are times when traveling across country when this is not always possible.  I look forward to the day when my wife and I (she drives as well) can go 350-400 miles without having to find a truck stop.  I really, really despise truck stops!

Frank



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Barb and Frank

2016 Landmark Key West

2016 Ram 3500/Cummins Diesel/4WD



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Call Tom at Classy Chassis. They are simply the best.

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