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- CLOC-AdminNot sure we want to do this but I’m looking at adding either a auxiliary or maybe a transfer tank to our 2014 F350 SRW. I’m only reluctant because of the added weight and what it would do to fuel mileage. Our pin weight is: 2,600 pounds. If I’ve got this right an Auxiliary tank would sit in the bed and be plumbed to gravity feed fuel from the tank into the filler pipe. It would keep the truck tank full till the bed tank runs empty. The cost is about $500 installed, but it does stick up about the truck bed and I would need to get rid of my bed cover.
Where as a Transfer tank would also sit in bed but would have an electric (or manual) pump to “transfer” fuel to the truck tank when needed. Like a big gas can mounted in the bed. When the fuel gauge shows low you would stop somewhere and pump a tank of diesel from your own gas station in your truck bed. With same tank subtract about $80 for parts kit and add about $250-300 for 12v pump.
For both I believe I would need to add air bags to the truck because of the added weight.
I’m thinking Auxiliary is the way to go…am I missing something
Posted: 10:34 AM – Feb 11, 2014I have an auxiliary/toolbox combo. It does not stick up above the bed rails on my 2011 Silverado 3500 SRW. My pin wgt is #3675. It is a great convenience.FS
Posted: 10:36 AM – Feb 11, 2014I installed a compo 50 gal/tool box from “Transfer flow”. It sits approx. 1″ above the top of the bed. It’s computer controlled with a dash mount monitor, as my main tank gets below approx 80% it pumps into the main tank automatic. I’ve had this for going on 4 years. Love it.Lillyputz
Posted: 11:20 AM – Feb 11, 2014We also have the TransferFlow tank that is manufactured in Chico, CA. It’s a 75 gal tank and coupled with our 39 gal truck tank, it allows us to be choosy as to where and when we fill up. The money we’ve saved by being able to wait for a better fuel price, has paid for the cost of the tank over the 7 years we’ve had it. Our’s starts to pump when our truck tank gets down to half, them pumps until nearly full. I can go 900+ miles before re-filling. We’ve only had one incident with the tank. TransferFlow after examining it, discovered it had been installed by an authorized dealer in Dallas, but was not done properly causing a small hairline crack at one of the mounting locations. It would only leak when the tank was full and the weight would cause the crack to open. After using some of the fuel, the crack would close and the leak would stop. When all of this started happening we were traveling in the West and so we routed to Chico to present the problem to them directly. Once they figured out the problem, they gave/installed us an upgrade from our 70 gal tank to their newest 75 gal tank, filled it completely full of diesel and sent us on our way free of charge. Now that’s Customer Service. The only thing that extends above our bed rail is the fill neck, approx. 2″.B.W.
Posted: 12:33 PM – Feb 11, 2014I have a 2001 F250 with the 7.3 diesel. I installed a RDS aux. 37 gallon fuel tank model # 71804 in 2006 in the bed of my truck. I put it in front of the tailgate because I had a diamond plate tool box generator behind the cab. The tank is only 9 inches tall. It is below the tailgate and top of bed. This way it does not interfere with the fifth wheel when latched to the truck. And I only refuel one time a day before the campground for the night.Posted: 1:54 PM – Feb 11, 2014I had a custom diamond plate aux tank manufactured by these folks to fit my truck. They had it built and shipped to me in less than 2 weeks. The stock tanks wouldn’t fit like I wanted it to.I now have 80 gallon capacity.http://www.kshmarine.com/truck_tanks1.htm
It is in between the tool box and truck bed. It was 440.00 . I installed a manual on/off valve.
Chip
Posted: 2:54 PM – Feb 11, 2014I had a Titan 67 gallon fuel tank installed in place of the factory tank in my 2008 Ford F450. I am happy with that. I can pretty much drive as far as I want to without having to stop for diesel…and nothing in the bed and no extra plumbing.Posted: 7:36 PM – Feb 11, 2014I too, have the RDS 37 gal aux tank. I bought it online, and had my local mechanic do the install. It works flawlessly, and gives me about 500-600 mile range towing. It sits below the rail, so there’s no problem with the cover. The nice thing about it over a transfer tank is that there’s nothing to think or worry about. Gravity works all the time and the valve system is really simple. If you buy online, shop around. I saved about $80 after shipping by not buying from the large, well known tool seller.Cliff
Posted: 10:21 AM – Feb 12, 2014I have about $350 into my auxiliary fuel tank system. I found a used 98 gallon “transferflow” fuel tank, I used a small pump and large fuel filter and pump into my trucks fuel tank. When I am driving down the road and I see I am getting to about 1/4 full I turn on the pump in the cab and fill my fuel tank till it gets to 3/4 and keep going.I can only speak for transferflow systems, they are expensive around $1600 to have it installed when I looked. If you are mechanically inclined do the work yourself and save some cash.
Lastly my pin wieght is about the same as yours, and my extra fuel adds about another 1K lbs. I drive cautiously, always do pretrip inspection, and buy good tires and I have not had a problem
Eric
Posted: 10:27 AM – Feb 12, 2014Here is a view of the fuel filter, notice on the bottom of the filter is a petcock valve where you can drain any water, this is important to make sure no water gets to my engines fuel injectorsPosted: 3:27 PM – Feb 12, 2014Eric wrote:I found a used 98 gallon “transferflow” fuel tank, I used a small pump and large fuel filter and pump into my trucks fuel tank. EricHey!! I think that’s my old TransferFlow fuel tank!!!!!
JUST KIDDING! Mine was only a 70 gal.B.W.
B.W.Gentry
Owner/Admin
2007 Carri-Lite XTRM5
Breckenridge, TX
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