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Old 07-22-2014, 04:20 PM   #1
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Fuel Tank Replacement on TV

Having the 26.5 gallon diesel tank in our 2011 F250 Crew Cab replaced with a 50 gallon Titan tank next week in order to extend mileage range between stops for fuel. We decided we did not want to give up space in the truck bed as well as our tool box. Wondered if anyone else had done this type of change and could share experiences good or bad.
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Old 07-22-2014, 04:37 PM   #2
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Years ago, we put a 50-gallon bed tank in our 1978 Chevy, long bed, crewcab pickup. Also, I paid a few dollars extra and had filler caps put on both sides of our truck (only cost $10-15 extra, because the $800 tank was custom-built).

Our 454 V8 only got 4-5 mpg, so the only drawback was the cost of fill-ups. At the time, middle-eastern oil had peaked, and gas was about $4.25 per gallon in Phoenix and the Rocky Mountain states. On our summer vacation that year, those $150-175 fill-ups every couple of hundred miles were killers!

I'd buy another tank, but our Tundra has a short bed; and a bed tank would take up too much space. And, a 50-gallon tank won't fit underneath the frame.
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Old 07-22-2014, 05:06 PM   #3
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A few years back I went to Transfer Flow, in Northern California and had them change out the 23 gal stock tank to a 45 gal tank on my 2006 Chevy Silverado diesel. It fit in the stock location. One of the best things I've done. Makes traveling more enjoyable, not having to focus on where the next diesel station was. Also makes it nice to fuel up when you find fuel a few cents cheaper. Check out Transfer Flow web site.
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Old 07-22-2014, 05:15 PM   #4
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Same issue with short bed F250 (diesel), 25-26 gallons is too small for even 300 - 350 mile days. I put a 50 gal. 'in-bed' tank that has storage space above it and below bed height, total of 75 gal. I can tow over 800 miles and have 1/4 tank in both tanks for reserve. It makes stopping for fuel a lot easier and gives you more options on when & where.

But, to do it again, I'd go with the under bed install. When traveling, bed space is valuable real estate, IMHO.
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Old 07-22-2014, 05:42 PM   #5
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We carry six gallons of extra fuel for our generator(s), in a portable marine gas tank. On long driving days, this reserve supply allows us to run our TV fuel tank closer to empty without worrying. So far, we haven't needed it.

Note: Six gallons adds about 75-80 miles to our range.
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Old 07-23-2014, 01:14 PM   #6
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Thanks for the replies

Thanks everyone for your thoughts and the good replies.
Tom
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Old 07-23-2014, 01:38 PM   #7
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Tom,
I swapped my F250 tank about a year ago. Dealer wanted almost 1k in labor. I did it myself in about four hours and just paid for the parts. Its pretty easy to do, just need to make sure the Tank is pretty close to empty. I used a motorcycle jack that I balanced the tank on and also jacked up the truck about six inches to make maneuvering under it a bit easier. The tank is held in place by straps and my truck also had a off road tank protector which was held in place by four bolts. The hardest part of the job was removing the filler neck and vent. I am sure if I were doing it again it would take less time.

Some guys remove the truck bed to remove the fuel pump first but I managed to drop the whole tank and then disconnect as I was lowering it. If you have questions ask but if you can do mechanical projects around the house, you should be able to do this without too much hassle and save yourself a pretty penny!
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Old 07-23-2014, 07:39 PM   #8
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Quote:
Originally Posted by Silverbee View Post
Thanks everyone for your thoughts and the good replies. Tom
I changed the 26 gallon stock tank with a 50 gallon titan under frame tank. I had the dealer install it on my 2011 F-350 short bed, and they charged 700.00 and I was okay about having the dealer do the swap. We just got back from a 6000 mile south western/ mountains and return back east and having the bigger tank made the whole trip less stressful. We only do 300 miles a day and we averaged 12.5 mpg so that gave us a range of 600 plus miles. I planned fuel stops with lunch and we used truck stops which made it easier to fuel up and most had places for us to park and have lunch. All in all a great decision for me and my wife. Regards, Reganzo
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Old 07-23-2014, 08:40 PM   #9
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Thanks again for all the comments. I think getting the increased tank size will really make things less stressful. We have been through looking for stops and watching the gauge and finding a place with diesel and adequate space to pull in, pull out.
I read through the installation instructions and believe that I could to the switchover but our Ford dealer gave me a quote of $300 which includes updating the programming to give correct miles to empty readings, so I think that is very reasonable and will go that route. We are heading to Tennessee for a couple of weeks and look forward to our first trip with the expanded fuel capacity.
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Old 07-23-2014, 08:53 PM   #10
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We replaced the stock 34 gallon diesel fuel tank with a Titan 56 gallon tank that fits in the same space under the bed and body of the 2012 Dodge 2500HD. That adds at least another 220 to 300 miles to the range before fill up. We also added a Cummins water separator coming out of the tank and then going to the engine mounted fuel filter. We came out of the engine fuel filter into a stand alone Cummins 2 micron fuel filter and then into the fuel rail.

The lie-o-meter is unaware of the extra fuel capacity, so the distance to empty is useless. I reset the trip milage at every fuel refill and do a mpg calculation and use a roughly 10% lower number for the next leg for mileage fill up estimate. There is more range than my bladder has, so that has become the refueling signal.
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Old 07-23-2014, 09:53 PM   #11
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I thought long and hard about making the exact same switch to Titan 50 gals from the stock 26 gal on my 2012 Ford F350 diesel. From memory the tank cost around $1200 and fitting probably 250-350 depending on where you go. I am currently in the middle of the Yukon territory having driven here from Florida and have not yet encountered or even come close to a situation that has forced me to resort to my 5 gal jerrycan I opted to carry at a cost of $30 for the jerrycan. Have not faced a situation where could not access a station with diesel towing a 30 footer so only real benefit would be longer legs without stops but my wife hates to go more than 200-250 miles without a break.
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Old 07-24-2014, 11:49 AM   #12
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Per Transfer Flow, for my 45 gallon tank, when full it's 7 gallons over and when it reads empty, I have 7 gallon left in the tank. Have only once had the low fuel light come on since having this tank installed.
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