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Author Topic: Pickup Auxillary Fuel Tanks  (Read 10396 times)

rogertre

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Pickup Auxillary Fuel Tanks
« on: November 04, 2011, 03:34:41 PM »
I'm thinking about installing a 40 gallon auxillary fuel tank in my 2007 GMC 2500HD. Questions abound:

Does this sound like a unsafe idea for a "gasser" pickup?
Will the additional 300 lbs in pickup make any significant difference in the driving/brakeing?
Do most 5th wheel people have "aux tanks"? (as I've been led to believe)
Any information or experience will be helpful.
We are planning a 6000 mile trip next spring/summer and an aux tank would be real helpful.
Roger & Kathy Trescott
Palm Coast, Fl
2006 Forest River Wildcat
2007 GMC Sierra 2500HD Z71

aterry

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Re: Pickup Auxillary Fuel Tanks
« Reply #1 on: November 04, 2011, 04:01:26 PM »
I have basically the exact same truck except a Chevy. I imagine your truck is the same as mine with the 26 gallon gas tank. When I'm pulling my 5th wheel I only get about 10-11 MPG......260 miles per fill-up isn't very far. I've considered getting an axillary tank too. I haven't done much research on them, but in my mind they can't be too unsafe or they wouldn't be legal to have. Let me know if/when you get one and how you like it.
Andy
2011 Canyon Trail
2009 Chevy 2500HD Duramax
SW Missouri

eliallen

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Re: Pickup Auxillary Fuel Tanks
« Reply #2 on: November 04, 2011, 04:54:38 PM »
Good place to start...   http://www.transferflow.com/

rvpuller

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Re: Pickup Auxillary Fuel Tanks
« Reply #3 on: November 04, 2011, 07:21:23 PM »
This is what I have been using for 15 years  http://www.handyindustries.com/products/truck-fuel-and-tool-box-combinations. I pump it into the main tank with a Holly fuel pump http://www.handyindustries.com/products/truck-fuel-and-tool-box-combinations.

Denny
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Windeed

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Re: Pickup Auxillary Fuel Tanks
« Reply #4 on: November 04, 2011, 08:03:34 PM »
I have a 2009 diesel Silverado Crewcab shortbox and pull a 31' fifth wheel toy hauler. It has a 24 gallon tank so I thought that when I go out west I would find myself in the middle of nowhere and out of gas. I had a 37 Gallon aux tank installed so now I have 60 gallons when I fill up. Company I used is called Transfer Flow and the system has a computer and display that monitors both tanks and automatically pumps to keep the main tank full. This tank was also designed to work with a Pace Edwards rolling tonneau cover so I had both installed. The aux tank system cost around $1800. Used it this summer to go out to Sturgis and it worked like a charm. While it isn't the least expensive system out there I think you get what you pay for and I am a happy camper.

glen54737

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Re: Pickup Auxillary Fuel Tanks
« Reply #5 on: November 04, 2011, 08:08:06 PM »
For Gas i think you need a transfer tank rated for flammable liquids to be legal it cannot be connected to the trucks fuel system.
I would research it more before buying.

Diesel is a whole different set of rules.
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BigLarry

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Re: Pickup Auxillary Fuel Tanks
« Reply #6 on: November 04, 2011, 09:10:32 PM »
I have a 75 gallon Transfer Flow tank in the back of my truck and wouldn't be without it.  I doubt it would be legal for Gas, however they do make replacement tanks that I believe go up to 45 gallons. 

It was a lifesaver when we drove to Alaska last summer.  It kept us from filling up in those out of the way locations where the fuel cost was very high.  We were able to drive the Haul road from Fairbanks to Deadhorse and back without filling up.  In Alaska, if you can fuel up only in Fairbanks and Anchorage, the fuel is much cheaper.
Larry and Betty
Bryan, Texas
2007 Chevy K-2500 ext cab diesel
2014 Keystone Cougar 19RBE

rogertre

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Re: Pickup Auxillary Fuel Tanks
« Reply #7 on: November 05, 2011, 10:35:43 AM »
Well it does not look to good for gas in a auxiliary tank, to expensive for a truck I plan to replace in two years. I will upgrade to a diesel at that time and get a auxiliary tank. A good research/learning project to be sure. I'll be going 60 mph and filling up every 175 miles for a couple of years.
Does anyone carry a couple of gallons in a plastic gas can in the basement of thier campers? Does not sound like a great idea but neither does getting fuel with a camper in tow.
Thanks for the inputs.
Roger & Kathy Trescott
Palm Coast, Fl
2006 Forest River Wildcat
2007 GMC Sierra 2500HD Z71

Alfa38User

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Re: Pickup Auxillary Fuel Tanks
« Reply #8 on: November 05, 2011, 10:55:16 AM »
I would have no qualms about carrying those plastic gas cans (or 2) tied down in the back of a truck. Just not in the camper because of fumes!!!
« Last Edit: November 05, 2011, 10:56:56 AM by Alfa38User »
Stu
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Gary RV Roamer

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Re: Pickup Auxillary Fuel Tanks
« Reply #9 on: November 05, 2011, 12:10:34 PM »
Transferflow makes aux tanks for GMC pick-ups and also extra large replacement tanks. They all meet federal and California vehicle fuel system safety specs too. But they aren't inexpensive and probably too much if you aren't keeping the truck several years.

http://www.transferflow.com/GM_fuel_tank_systems.html

Carrying a fuel can or two is good for an emergency reserve, but of little value in extending your driving range. Stopping to pour fuel into the tank forma jerry can is more hassle than stopping at a fuel station. And then when you stop you have to fill the truck and the spare cans as well.

Probably your best bet is to stop for fuel every 200 miles. Time to stretch your legs and take a nature break anyway. We stop that often (and usually even sooner than that) even though our rig sports a 150 gallon tank.
Gary
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2004 American Tradition
2007 GMC Acadia
Homebase: Ocala National Forest, FL

rogertre

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Re: Pickup Auxillary Fuel Tanks
« Reply #10 on: November 05, 2011, 07:52:09 PM »
Gary: understand about the break every 200 miles completely. The biggest pain with towing a 5er is the fuel stops, my limited experience fueling has not been plesant. Truck stops are okay but still conjested when you are close to 50 feet long. The more experience we get the easier things get, maybe that will hold true for fuel stops.
How stupid would it look to have a 5er parked in a church parking lot with the DW/PO'edW standing guard while I was off fueling, I can see the day coming.
Roger & Kathy Trescott
Palm Coast, Fl
2006 Forest River Wildcat
2007 GMC Sierra 2500HD Z71

Gary RV Roamer

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Re: Pickup Auxillary Fuel Tanks
« Reply #11 on: November 05, 2011, 08:34:26 PM »
We towed a 30 foot 5W ourselves for a time, so I understand the frustration. The modern station design with the pump lanes perpendicular to the convenience store is definitely not RV friendly, whether trailer or motorhome. If possible, find a station where the pump lanes  parallel the front of the store (and the road too). That probably means you have to start looking for a fuel stop well before the 200 miles, in case you don't find one where you will fit.

Truck stops are a good alternative and Pilot/Flying J stops usually have an RV lane. Stoill may be congested, though.
Gary
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2004 American Tradition
2007 GMC Acadia
Homebase: Ocala National Forest, FL

glen54737

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Re: Pickup Auxillary Fuel Tanks
« Reply #12 on: November 06, 2011, 01:01:57 AM »
Patience and planning your exit are really required to refuel while towing. I try to plan how i'm going to get out of the station before i commit to entering it and if that dosen't work you may have to wait for someone to leave or move. I really like the rv lanes at flying j but they can get croweded too.
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rogertre

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Re: Pickup Auxillary Fuel Tanks
« Reply #13 on: November 06, 2011, 07:27:42 AM »
To give an idea of how I planned the last trip to Tampa. I went on Google maps to exit 44 on I-4 and found a Luv's truckstop that was nice size for a 5er, used it going and coming. Will try and do that as much as possible.
Roger & Kathy Trescott
Palm Coast, Fl
2006 Forest River Wildcat
2007 GMC Sierra 2500HD Z71

lone_star_dsl

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Re: Pickup Auxillary Fuel Tanks
« Reply #14 on: November 06, 2011, 07:26:39 PM »
Before you poo poo the idea all together, look into the fuel savings as well.

My wife and I made a trip to California over the summer.  I took along one of my 100 gallon aux tanks and filled it at the cheapest stations I could find.  I used the gas buddy app before we left and found diesel for $3.69 in Grand Junction.  By filling the tank there versus here at home for $3.85, I saved about $15.  I drew off the tank and topped it off in Mesquite, NV for $3.65.  That tank was enough fuel to get me all the way to the beach and back to Mesquite.  I filled the truck tank in Grand Junction and rolled up to the house with an empty 100 gallon aux tank and 1/4 tank left in the truck.

If I didn't have the tank, I would have had to fill up at one or two stations in California where diesel was $4.00+.  I estimate the fuel savings for this one trip at well over $100.
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rogertre

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Re: Pickup Auxillary Fuel Tanks
« Reply #15 on: November 07, 2011, 01:55:58 PM »
lone star - I'm sure that works fine for diesel, but for now I use "gas" and gasoline is a good bit more difficult regularion wise as well as wallelt wise.
Roger & Kathy Trescott
Palm Coast, Fl
2006 Forest River Wildcat
2007 GMC Sierra 2500HD Z71

rvpuller

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Re: Pickup Auxillary Fuel Tanks
« Reply #16 on: November 07, 2011, 03:10:30 PM »
lone star - I'm sure that works fine for diesel, but for now I use "gas" and gasoline is a good bit more difficult regularion wise as well as wallelt wise.

I have used my 50 gal gas aux tank in 49 states and 6 Provence's without any problems including Californian and Oregon where you can't pump your own fuel.

Denny 
35 FKTG HH Premier
2013 F350 DRW 6.2 V8 4.30 gears
Home Base SC Nebraska

carson

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Re: Pickup Auxillary Fuel Tanks
« Reply #17 on: November 07, 2011, 03:51:42 PM »
I guess all Gas Stations are eager to sell you as much fuel as possible....without liability. Do we need another law ?

Carson FL
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Ex RV'er. (1995 Winnebago Adventurer)
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sundance3200

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Re: Pickup Auxillary Fuel Tanks
« Reply #18 on: November 07, 2011, 04:11:23 PM »
I have a Transfer Flow 50 gal. Aux. tank and I couldn't be happier, yes they are not cheap but you get what you pay for, and they re legal.  You might get a book called "The Next Exit"  as it will tell you where there fuel stops that will accomodate your rig.
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skirk55

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Re: Pickup Auxillary Fuel Tanks
« Reply #19 on: November 07, 2011, 08:10:51 PM »
I purchased 5@ 5gal. diesel fuel cans to see if it made a difference. I am getting a 50 gal. aux. tank now!

Lou Schneider

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Re: Pickup Auxillary Fuel Tanks
« Reply #20 on: November 08, 2011, 12:06:18 AM »
One of the most creative auxiliary tanks I've seen is a side saddle tank from a big rig mounted sideways across the front of the pickup bed.  The guy said he bought it for $50 at a junkyard.

rogertre

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Re: Pickup Auxillary Fuel Tanks
« Reply #21 on: November 08, 2011, 09:01:32 AM »
Gary - The RV lane at truck stops you spoke of earlier, is that for diesel of Gas or both?
I'll start looking around for myself but welcome your experience.
Roger & Kathy Trescott
Palm Coast, Fl
2006 Forest River Wildcat
2007 GMC Sierra 2500HD Z71

Gary RV Roamer

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Re: Pickup Auxillary Fuel Tanks
« Reply #22 on: November 08, 2011, 04:18:37 PM »
Flying J has both gas and diesel (and propane too) at their RV lane in front of the station.  The truck specific lanes (usually off to one side) are diesel only and have the large filler nozzles.  The RV lane is usually the leftmost or rightmost pump lane of the car lanes, which helps keep the Rvs out of the congestion somewhat. How much depends on the size of the station - some of them are cramped.
« Last Edit: November 08, 2011, 04:20:17 PM by Gary RV Roamer »
Gary
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Peanutman

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Re: Pickup Auxillary Fuel Tanks
« Reply #23 on: November 08, 2011, 04:36:17 PM »
Get you an ol' beer keg and a hand pump for gas or the idea earlier, a gas tank out of the wrecking yard and make do until you get your new rig.
I have 2010 Chevy diesel with the small fuel tank. For me it's not getting in and out of fuel stops but fear of running out in between fuel stations, so i always carry me a plastic Jerry can with an extra 5 gals for emergencies.
2011 Heartland Greystone 32RE, Chevy Crew 2500 HD 4X4 Duramax 6-speed Allison.

ikoolu

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Re: Pickup Auxillary Fuel Tanks
« Reply #24 on: November 15, 2011, 10:32:47 PM »
if you are planning a trip to So Calif - try Aero Tanks in Riverside -my is 52 gallons and replaced the factory - $1090 installed- fills better, and nice to go 500 miles before filling = and its steal - not a plastic  type

tvman44

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Re: Pickup Auxillary Fuel Tanks
« Reply #25 on: November 16, 2011, 12:20:48 AM »
I have carried a couple of 5 gallon plastic cans of diesel in the truck bed for in case.  They are a jpain to use and I ended up  getting home with them full.  But for the peace of mind they were worth it.

zurgprot

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Re: Pickup Auxillary Fuel Tanks
« Reply #26 on: November 20, 2011, 08:47:29 PM »
Rogertre, I was in a very similar situation to you this March.  Transferflow makes tanks for gas and diesel, and yes...they are very expensive.  I was going to purchase one, but they could not get it to me in time for my trip (Seattle to Orlando).  So I ended up getting 2 5 gallon cans.

You're getting a new truck in a couple of years as well as switching to diesel.  So it makes financial sense to wait on a big purchase like that.  Maybe the gas cans, or something else cheap can hold you over.

Small story:

We pulled in to a campground in California that was supposed to be open...but there was 2 feet of snow on the ground from a recent storm.  I had been on E for about 5 miles at this point and we could not find a gas station.  So the cans saved our butts because we drove something like another 30 miles before we found some diesel.  After that we ended up only driving as far as one tank of fuel would comfortably go in a day.

Moral:  You can work it with gas cans...but it is not fun.  Especially if, like me, you start getting twitchy after the needle gets below half a tank.

eliallen

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Re: Pickup Auxillary Fuel Tanks
« Reply #27 on: November 21, 2011, 09:58:05 AM »

Moral:  .  Especially if, like me, you start getting twitchy after the needle gets below half a tank.
I thought only my wife had that problem. But I have been with her so long that it rubbed off on me.

rogertre

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Re: Pickup Auxillary Fuel Tanks
« Reply #28 on: November 21, 2011, 02:37:30 PM »
My wife gets itchy as well. I plan on using gas cans for our Eastern US and Canada trip next spring. I wish I could drive only as far as one tank of gas would take me but that's only 150 miles or at least thats when the needles and elbows from the passenger seat start getting serious.
Roger & Kathy Trescott
Palm Coast, Fl
2006 Forest River Wildcat
2007 GMC Sierra 2500HD Z71

Mopar1973Man

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Re: Pickup Auxillary Fuel Tanks
« Reply #29 on: November 21, 2011, 04:41:28 PM »
I have carried a couple of 5 gallon plastic cans of diesel in the truck bed for in case.  They are a jpain to use and I ended up  getting home with them full.  But for the peace of mind they were worth it.

Same here... Two 5 gallon cans full of diesel fuel so if I want to skip till later not a problem... For me fuel station is a long ways away 15 miles to the north or 20 miles to the south. So I typically pack fuel with me all the time.
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