• |
  • |
  • |
  • Titan 62-Gallon Replacement Tank and 30-Gallon Spare Tire Auxiliary Fuel System Tank - Diesel Tech

Titan 62-Gallon Replacement Tank and 30-Gallon Spare Tire Auxiliary Fuel System Tank - Diesel Tech

Extreme Capacity: 92 Gallons of Under-Bed Fuel

Oct 3, 2014
Photographers: The Author
Nobody truly enjoys stopping for fuel. From the nasty pumps to the painful bill, it's a necessary evil most could do without. This notion is especially true for those who tow frequently. Fortunately, there is a solution that can make these hurtful experiences less frequent, without losing precious bed space.
Titan Fuel Tanks is a leader in the industry, providing upsized fuel tanks that fit snugly under all of the Big Three's heavy-duty truck lines. Built from extra-heavy-duty, cross-linked polyethylene, these tanks are sturdy enough to outlast the vehicle to which they are bolted. Each tank comes with the appropriate mounting hardware, hoses, wires, valves, and clamps for a complete installation.
For our 2008 Chevy Silverado 3500HD Crew Cab longbed, Titan offers a 62-gallon replacement tank and a 30-gallon Spare Tire Auxiliary Fuel System tank. This gives our truck a combined 92 gallons of fuel, and more than 1,000 miles of range between fill-ups. Even though the bill will be higher and sting a bit more, fuel payments will happen a third as often. And for a truck that regularly sees towing duty, not needing to stop for fuel with the trailer attached can be a big relief.
We headed down to Bud's Diesel in Midway City, California, where the crew got to work installing the pair of tanks under our dualie. Follow along with us as we nearly triple this heavy hauler's fuel-carrying capacity.

Photo 2/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 02
The new Titan 62-gallon fuel tank reuses the factory fuel pickup and sending-unit assembly. Before removal from the stock tank, this area should be thoroughly cleaned of dirt and debris to prevent contamination.
Photo 3/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 03
Before assembly, the new tank is checked for foreign objects and given a quick cleaning. A new O-ring is provided to seal the fuel pickup to the tank and should be lubed with a petroleum-based grease before tightening.
Photo 4/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 04
The Titan fuel tank is designed to accept the factory fuel pickup and fuel-level sending unit without any modification needed. This ensures there are no odd dash lights or trouble codes, and that the fuel gauge works as intended.
Photo 5/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 05
Special care was taken when removing the factory filler-neck tube, as this part is reused on the new tank. Damage to the filler can cause leaks or a "check engine" light, and fillers can be costly to replace.
Photo 6/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 06
New hoses and T's are supplied to provide adequate ventilation from the front and rear of the extra-long tank. These are in addition to, and splice inline with, the factory vent hoses.
Photo 7/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 07
Raising the new 62-gallon tank into position can be a cumbersome task. Technician Neil Fabula showed his knowledge by employing a transmission jack as a second set of hands.
Photo 8/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 08
Once the new Titan tank was wiggled into place, Neil went to work securing it. The tank mounts with the factory steel straps and a provided crossmember. The new crossmember bolts to both of the truck's framerails and supports the front of the tank.
Photo 9/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 09
With the 62-gallon main tank installed, Neil turned his attention to the 30-gallon Spare Tire Auxiliary Fuel System, also from Titan. Before slinging the tank into place, all the necessary hoses and wires were attached. Fortunately, Titan does an excellent job of providing everything that's needed.
Photo 10/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 10
The spare tire auxiliary tank weighs in at a svelte 30 pounds, making it possible for Neil to sling it into place. Holding the tank in place is a plate system that bolts in place of the factory spare tire winch.
Photo 11/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 11
Here we can see the plate that secures the Spare Tire Auxiliary Fuel System. Once the nut was torqued to spec, Neil moved on to wiring and plumbing the second tank.
Photo 12/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 12
A small, inline electric fuel pump is used to transfer fuel from the spare tire auxiliary tank to the main tank. We chose to mount the pump and filter to a bed floor support rib, which allowed us the most direct and kink-free hose routing.
Photo 13/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 13
To facilitate the fuel transfer, an adapter is spliced into the main tank's vent tube. This provides both fill and vent capacity for the spare tire auxiliary tank.
Photo 14/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 14
The most painful part of the install is drilling the massive hole necessary to mount the auxiliary filler. We chose the inside of the bed for the most inconspicuous placement possible, however, the instructions offer up a template for bedside mounting as well.
Photo 15/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 15
Filling the spare tire auxiliary tank is done via a traditional fuel filler. This ensures there are no unwanted holdups at the pump. Titan also provides a billet aluminum cover (below) for that added touch of class.
Photo 16/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 16
Initiating the transfer of fuel from the auxiliary tank to the main tank is done at the push of a button on the dash-mounted controller. The controller also has the ability to display the fuel level in the auxiliary tank, ensuring you're not just pumping air.
Photo 17/17   |   2008 Chevrolet Silverado 3500HD Titan Fuel Tanks Install 17

Sources

Titan Fuel Tanks
Idaho Falls, ID 83403
800-728-4982
www.titanfueltanks.com
Bud's Diesel
714-902-1467
www.budsdiesel.com

POPULAR TRUCKS

MOST POPULAR

Subscribe Today and Save up to 83%!

Subscribe Truck Trend Magazine

Subscribe to:

Truck Trend
Magazine

PRINT DIGITAL
Subscribe Diesel Power Magazine

Subscribe to:

Diesel Power
Magazine

PRINT DIGITAL
Subscribe Truckin Magazine

Subscribe to:

Truckin
Magazine

PRINT DIGITAL
SUBSCRIBE TO A MAGAZINE
CLOSE X
BUYER'S GUIDE
SEE THE ALL NEW
NEWS, REVIEWS & SPECS