One thing all pickup truck drivers have in common is the growing sense of anxiety when they see their fuel gauge drop below the quarter-tank mark and quickly collapse closer to “E”. This tension is amplified when you are driving in unfamiliar terrain and you don’t know where the next gas station is. Or maybe it’s late at night when the small stations are closed and running out of fuel becomes an obvious possibility. In these scenarios, having an additional 10, 15, or 20 gallons of fuel in the tank could save you stress.
Maybe you are an RV, rancher, farmer, construction worker, or hot shot commercial transport operator towing trailers with a heavy duty diesel pickup truck. If you don’t like making frequent pit stops to refuel during your daily chores, an elongated fuel tank might be the way to go. The more miles you can go under the wheels between fill-ups, the better.
This is where having a larger capacity tank, like the TITAN Gen6 XXL fuel tank, in your diesel pickup can save you time and money.
TITAN Gen6 XXL fuel tank
TITAN Fuel Tanks, based in Idaho Falls, Idaho, has been providing a solution for extending the range of pickup trucks for decades with its wide selection of large capacity fuel tanks for gas and diesel applications.
Their most recent offering is the Generation 6 Extended Capacity Replacement Tank (# 7020317) for newer 2017 Ford Super Duty Crew Cab diesel trucks. The TITAN Gen6 XXL fuel tank, which costs approximately $ 1,300, according to the manufacturer. Where you buy it, increases fuel capacity to 65 gallons, which is 17 gallons more than Ford’s 48 gallon tank.
This additional fuel capacity could extend the range of a new 6.7L Power Stroke by over 300 miles when empty driving and about 200 miles when towing a heavy trailer. This heavy-duty, heavy-duty mid-ship replacement fuel tank is a direct bolt-on replacement for the 2017-2021 FORD F250, F350 and F450 Pickup Trucks with Crew Cabins, 8ft Beds and Power Stroke Engines. It comes with a new front strap, special cross member bracket and sending unit seal.
Better plastic fuel tank
What makes TITAN fuel tanks DOT Compliant and Special CARB Certified is the “military grade” plastic construction. While OEMs such as Ford use linear polyethylene, TITAN takes strength and durability a step further by using cross-linked high density polyethylene (XLHDPE) for their tanks. It also has a ¼ inch thick wall, so it would take a long time to drill it.
“Pure strength is the biggest difference,” said Mike Deford, TITAN Marketing Director. “The crosslinked polymer is ahead of the linear polyethylene or metal offerings. It won’t rust, corrode, crack or crush when touched. It also doesn’t conduct cold or hot temperatures as badly as metal, so everything inside remains fluid, as it should.
The new tank does not come with a replacement skid plate. So we suggest you order one because the OEM skid plate will not fit the new tank, and the TITAN fuel tank hangs about 2 inches lower than the original one.
Fill in the blanks
How does TITAN get the extra fuel capacity? Simple. Fill in the open spaces around the OEM tank design. For example, TITAN’s XXL tank for the Long-Bed Crew Cab F-350 4 × 4 fills most of the gap between the OEM tank and the transfer case. The aftermarket tank is also 1.75 inches deep and slightly wider than the factory 48 gallon tank.
An inch here, a foot there over 6 feet, and all of a sudden the bulk is there to hold 17 more gallons of fuel. This higher capacity also means that you will need to have the DIC recalibrated at your local Ford dealership after installation so that it can read correctly.
Easy to install with the right tools
The TITAN website claims that they go out of their way to make the installation as easy as possible to swap out the Gen6 XXL fuel tank in place of your original tank. We found it to be true. TITAN not only provides step-by-step instructions, but it also offers video instructions on its website.
Generally speaking, installation involves removing the original tank from your pickup, moving the sending unit to the tank and the external water separator, connecting the fuel lines to the TITAN tank, installing a new front tank support and bolting the new tank. No modification is necessary.
The installation time of a 2019 F-350 Dually on which we installed the TITAN 65 gallon XXL long bed fuel tank took us about 4 hours using a 4 post lift and d ‘A hydraulic transmission jack in the Mobile Diesel Service shop in Sutherlin, Oregon.
Another installation note: It saves a lot of time and headache if you run the OEM fuel tank as low as possible before doing this swap. Diesel weighs about 7 pounds per gallon, so the less fuel there is in the tank, the easier it is to handle and remove under your truck.
So go ahead, you are on your way to enjoying fewer pit stops on your commute!
How to install a TITAN Gen6 XXL fuel tank
Step 1: The replacement of the Ford OEM fuel tank begins with the removal of the factory skid plate.
2nd step: Disconnect the fuel lines from the tank to the engine.
Step 3: The fill hose and vent must also be removed to drop the OEM tank.
Step 4: Ford uses a powerful threadlock on the tank mounting bolts. Using an air gun will likely break the clips that hold the nuts.
Step 5: Broken clips can be removed with a cut-off wheel to remove the bolts.
Step 6: Before removing the OEM fuel tank, remove the bolt that holds the water separator to its tank mounting bracket. Use a T-27 Torx bit.
Step 7: A hydraulic transmission jack and an assistant make it easy to remove the factory tank.
Step 8: We removed the locking ring retaining the sending unit in the Ford OEM tank using a hammer and a flat fin.
Step 9: The fuel lines must be taken out of the factory brackets so that the new lines can be moved together for the TITAN tank.
Step 11: We have coated the new sealing o-ring of the sending unit with white lithium grease to ensure a leak-free seal.
Step 12: The change of OEM fuel tank components is a trivial event. Lift and place in the TITAN tank.
Step 13: It takes a few good hammer blows for the seal ring to lock into place. Making sure this ring locks into place is essential in making sure that there are no fuel leaks.
Step 14: Reinstalling the water separator bracket mounting screw is important – and easier to do when the new tank is being prepared.
Step 15: The TITAN XXL kit comes with a new front mounting plate, threaded rod and hardware. Install before lifting the tank into place.
Step 16: The front tank bracket attaches to the crossmember just behind the transfer case.
Step 17: The larger capacity TITAN Gen6 XXL fuel tank fits easily under our 2019 F-350 Super Duty 4 × 4.
Step 18: A hole is molded in the large tank where the threaded rod can protrude to catch the new strap supplied by TITAN.
Remarks: We replaced the broken OEM tank strap bolts and clips with class 5 bolts and locknuts of comparable size. The TITAN Gen6 XXL fuel tank hangs approximately 2 inches lower than the factory fuel tank. We recommend installing an aftermarket skid plate if your truck is to be used off-road. OEM skid plate is not suitable for TITAN fuel tank.
TITAN fuel tanks: 208-522-1325
Diesel Mobile Service: 541-459-8939