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Fuel tank decision

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Old Oct 29, 2016 | 04:12 PM
  #1  
carlhwv's Avatar
carlhwv
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Fuel tank decision

Since need for increased torque got the best of me and not willing to wait any longer for a 2017, I need to address my fuel tank issue. Still can't believe they shipped this with only 26 gals on board....

I'm going to go with an in bed RDS, probably tank toolbox combo. I know I asked this question before and have that thread marked, but thought I'd ask if anyone who didn't post had anything else to offer or has an update. I have uplifter capacity and I'm leaning toward an electric pump to transfer from bed tank to main tank, including an inline filter for the aux. Also, is anyone using the 90 gal in a short bed with a fifth wheel hitch or is the 60 the max?

TIA.
 
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Old Oct 29, 2016 | 06:48 PM
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I use a 50 gallon tank in the bed with an electric pump powered by upfitter #1. I love it. The only quirk I deal with is the lack of venting in the truck tank. When I pump fuel into the truck tank there is a lot of built up air pressure from displacement. When I loosen the cap there is a strong whoosh of air. I usually leave the fuel cap loose to allow more free air flow but if I'm not careful I will get a gravity feed going and I've had fuel come up and out of the filler neck. It's a constant game of back and forth. It's worth it though when I can drive 800 miles with my trailer and only stop at rest areas.
 
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Old Oct 29, 2016 | 08:40 PM
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I use the RDS 60 gal tank that has a toolbox. The tank is great when you are on the the road and using the truck frequently. When not using the truck on a frequent basis consider how much fuel to have in your auxiliary tank to insure your tank has fresh fuel. I have a gravity feed with a solenoid valve powered from Aux SW #4 to open or close the gravity feed line. When I am not traveling much only a small qty of diesel is added to the auxiliary tank and the main tank is filled. I am planning to make a small modification to my gravity system to be able to test that fuel for water. I have never had any issues with fuel & water but feel that a filter/separate drain would be a good investment.
 
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Old Oct 29, 2016 | 09:49 PM
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Carl, both the bed tank and that extra 30 gallon (90 versus 60) would add a lot of weight to your low gvwr vehicle carrying a 5er pin weight. replacement tanks are available but there are limited options for shhortbeds. If you do not consume fuel within 30 days algae accumulation with bio diesel becomes an issue that additives can fix.

Originally Posted by carlhwv
Since need for increased torque got the best of me and not willing to wait any longer for a 2017, I need to address my fuel tank issue. Still can't believe they shipped this with only 26 gals on board....

I'm going to go with an in bed RDS, probably tank toolbox combo. I know I asked this question before and have that thread marked, but thought I'd ask if anyone who didn't post had anything else to offer or has an update. I have uplifter capacity and I'm leaning toward an electric pump to transfer from bed tank to main tank, including an inline filter for the aux. Also, is anyone using the 90 gal in a short bed with a fifth wheel hitch or is the 60 the max?

TIA.
 
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Old Oct 30, 2016 | 02:50 PM
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Originally Posted by JohnD333
Carl, both the bed tank and that extra 30 gallon (90 versus 60) would add a lot of weight to your low gvwr vehicle carrying a 5er pin weight. replacement tanks are available but there are limited options for shhortbeds. If you do not consume fuel within 30 days algae accumulation with bio diesel becomes an issue that additives can fix.
Thanks for bringing up weight issue John. Nix the 90....might rethink the 33.

We always ran additive in the boat for a different reason, but didn't think about it in relation to today's bio-diesel composition. Are most running additives these days for this reason? When I drive I will rack some miles....my one way is 500, but I will be sitting between fillups. I'll use some fuel in the tractor, but not sure I will cycle in 30 days. I guess I need to look for additive threads.
 
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Old Oct 30, 2016 | 03:16 PM
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I have a 45 gallon RDS tank that sits vertically--only nine inches wide. I have it set up for gravity feed with a solenoid valve I got off of ebay on upfitter switch #3. I love it since I can go two days on one fill up.

I don't keep fuel in it unless I'm using it. I do add some additive to the fuel and have never had a problem with water. I live in a dry climate so I don't worry about condensation. I only put 40 gallons in it when I'm using it. Fuel weighs about seven pounds per gallon, so I'm only looking at an additional 280 pounds in the bed. I use it down during the trip--by the end of the day, it is usually empty.
 
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Old Oct 31, 2016 | 12:43 AM
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I do mine with Jerry cans - thought about putting an aux tank in, but seeing as I have to stop to pee before running out of fuel in the stock tank, it isn't all that hard to just dump more fuel in. It's also easy enough to just leave the cans at home when I need the full use of my truck bed. But it certainly has a convenience factor of having a aux tank to auto fill the stock tank. 30 gal worth fits the width of the bed just right too.
 
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Old Oct 31, 2016 | 10:15 PM
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Originally Posted by whooboy
I have a 45 gallon RDS tank that sits vertically--only nine inches wide. I have it set up for gravity feed with a solenoid valve I got off of ebay on upfitter switch #3. I love it since I can go two days on one fill up.

I don't keep fuel in it unless I'm using it. I do add some additive to the fuel and have never had a problem with water. I live in a dry climate so I don't worry about condensation. I only put 40 gallons in it when I'm using it. Fuel weighs about seven pounds per gallon, so I'm only looking at an additional 280 pounds in the bed. I use it down during the trip--by the end of the day, it is usually empty.
what tank do you have? I want one that only takes up 12 inches or less of bed space. I assume I can still hide it under my bed cover right?
 
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Old Nov 1, 2016 | 07:08 AM
  #9  
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RDS and Fuelbox both make one that I believe fit what you are looking for.
 
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Old Nov 3, 2016 | 12:54 PM
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33 gal RDS tank w/ gravity feed. I actually bought the solenoid and was going to install it but gave it a couple of tank fulls and had no issues, leaks, just my MTE gauge getting confused. So now I have a new solenoid switch sitting on my garage shelf.
With the stock tank it gives me close to 60 gals total. Even towing I get 500 + miles until I even think about finding more diesel. By then I need to stop anyway. Thought about a larger tank but with the 5er being close to 14k lbs weight is a slight concern. Fits under cover with room to spare.






 
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Old Nov 3, 2016 | 01:41 PM
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Thanks for sharing the pics Scott. Looks great. What is you fill up process? 500 mile range is what I'd really like to achieve. I'm gonna try the 26 gals on my first trip next week and see how it goes. This trip I've decided to just run empty, then next time I'll be retrieving the the tractor. What is you fill up process? Do both tanks get fuel from the pump or just the RDS?
 
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Old Nov 3, 2016 | 02:09 PM
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Nice setup Scott! Does your Bakflip close over the top of the hitch? Does it stay pretty dry?


I think the 33 gallon tank that you have is what I would like. Like you, I don't want to add any more fuel weight than I have to.
 
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Old Nov 3, 2016 | 07:51 PM
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Carl, I always fill up the main tank first then the aux. Never the other way around, it can get messy. Trust me. I can tell I drained the aux tank when the main tank in dash gauge starts to fall. Then depending on towing or not I have a few hundred miles or so before I start to coast.
The only catch is the MTE guestimate is just confused.
Lee, yes the Bakflip fits perfectly and sits just on the top of the hitch nice and flat. I only had to turn over the hitch release handle so it pointed down. Stuff in the bed stays good and dry but its not water tight but very close. It has good drainage along the rail tracks and nothing comes in through the panel seams.
 
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Old Nov 4, 2016 | 05:54 PM
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Originally Posted by montey2005
what tank do you have? I want one that only takes up 12 inches or less of bed space. I assume I can still hide it under my bed cover right?
Look here: RDS_Rectangular_Tanks_72545
 
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