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Old 10-28-2014, 02:35 PM   #1
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Gravity fed Fuel Tanks

I'm in the process of getting a RDS fuel/tool tank combo, and use the northern tool install kit. I just got off the phone with a professional installer and he said those type of tanks that are gravity fed are illegal in most states. He wanted to sell his tank and a wired pump at double the price I was going to pay.
We are going to be traveling across country and into Canada.
Will A gravity fed, properly installed fuel tank cause me problems traveling???
Thanks
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Old 10-28-2014, 04:49 PM   #2
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Gravity fed Fuel Tanks

Is this gas or diesel? In some states diesel can be gravity but gas can not.
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Old 10-28-2014, 04:59 PM   #3
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Can't answer for the Dodge, but I have had a 60gal RDS tank/toolbox (same one) in my '07 Superduty and now my '09. Have not had any problems--overflows or dash lights. I did this specifically for long-distance towing, but it also allows over 1100 miles between fillups when solo. It was beyond putting a value on it for our AK trip in '12. You will enjoy using discounted fuel stops if you use gasbuddy.com to look at towns ahead on your route.
I also purchased at NT and used the install kit.
Joe
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Old 10-28-2014, 05:37 PM   #4
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its not some thing i would do... gravity fed alone

if you really like the gravity fed tank i would do like a washer setup make the out line go up and over the top of the level of fuel in the tank then get a low cost 12 psi pump so it can never run away

use the pump to push the fuel up the hill you made in the line

add a flashing light on the dash so you dont forget its on when moving fuel

as for whats ok from state to state and even Canada i am sure they well find any thing to pick on your about but i really dont know the ins and outs of the laws
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Old 10-28-2014, 05:49 PM   #5
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If it's about the price, then you should be able to make it a top feed tank and it shouldn't cost much. If you settle for gravity feed I'd add a fuel cut-off valve sat the tank making sure it's easily accessed.
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Old 10-28-2014, 06:06 PM   #6
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rving4us,
I have been using the setup that you are asking about for over 5 years with no problems. It is legal as long as you use the check valves that are supplied. The only problems that I had were the vent on the tank gummed up and I had to take it off and clean it. The other one really isn't a problem, but scares the heck out of you the first time it happens. The fuel gauge goes to empty after around 300 miles, Once you empty the auxiliary tank and start using from the main tank it comes back. This is on GM vehicles, don't know about Dodges.
I have also been to Canada with no problems, even some of the Canadians have their trucks set up like we do and have had no problems.
Frank
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Old 10-28-2014, 08:06 PM   #7
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Quote:
Originally Posted by rving4us View Post
I'm in the process of getting a RDS fuel/tool tank combo, and use the northern tool install kit. I just got off the phone with a professional installer and he said those type of tanks that are gravity fed are illegal in most states.
He's wrong. Assuming we're discussing your Ram diesel, then all you need is the correct kit to connect the auxiliary diesel tank to the main diesel tank. Don't even think about designing it yourself (DIY). Here's a link to that connection kit for a 2012 or older Ram diesel. I don't know what's different about your 2014, so I would contact RDS or Northern Tool and find out if they have a kit for your truck:
RDS Diesel Install Kit for Auxiliary Diesel Fuel Tank — Fits 1999–Current Ford, 2011–Current Chevrolet and GMC, and Dodge 1999–2012, Model# 011025

Gasoline is a different story. But that's a different thread.
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Old 10-28-2014, 08:15 PM   #8
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Pumped units need a licensed installer. No problem for gravity diesel setup. I have a gravity unit now 16 years and would never chance the installation of a pumped unit.
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Old 10-29-2014, 03:29 PM   #9
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Originally Posted by SmokeyWren View Post
Here's a link to that connection kit for a 2012 or older Ram diesel. I don't know what's different about your 2014, so I would contact RDS or Northern Tool and find out if they have a kit for your truck:
I asked RDS. Here's their reply:

Auxiliary tank Install kit for 2014 Ram diesel‏

Linda Wiles (lwiles@rdsaluminum.com)

11:24 AM
To: Smokey Wren

We have the 1.75 " Diesel Gravity kit as pn 011408 and can be ordered from Northern Tool, Nationwide Wholesale Direct, Union Hydro, Camping World.
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Old 11-18-2014, 11:48 PM   #10
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I installed an RDS 91 gal tank/toolbox combo last week and it's gravity fed to the main tank. So far it works great. I do manually turn off the fuel when I don't want it flowing.
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