Last year, we towed a heavy Weekend Warrior toy hauler to Canada. Part of the trip required us to pull through some mountains, and while our Duramax had plenty of power to keep us well above the posted speed limit, fuel consumption was noticeably—and understandably—up.
The correct application is...
The correct application is clearly marked on the outside of the box.
What we immediately noticed was we needed to stop for fuel much more often than our traveling companion. True, his trailer was a bit lighter, but our DIC readouts showed very similar mpg. The trucks were similar. Both were LMM Duramaxes with Allison six-speeds and they were within two years of age and comparably equipped. The only obvious difference was his was a longbed (8 foot) and ours was the shortbed (6.6 foot). A quick check showed the longbed’s tank held 34 gallons of ULSD while our shortbed only carried 26 gallons. Wait a minute…26 gallons? Seriously? On an HD truck supposedly designed for towing?
“If you’re unsatisfied with the factory fuel supply option, Transfer Flow offers an excellent solution.”
This label on the tank advises...
This label on the tank advises exactly what you are getting.
While roaming about the Baltimore Tow Show last year, we came across the Transfer Flow booth and the answer to our problems. We chatted for a while about tanks and trucks, and we left with a lot of info and a business card. After another long trip with a small tank, we made contact with Transfer Flow. A few weeks later, an enormous box appeared. We took the box and the truck over to Park Road Automotive, which is a well-equipped, family run outfit where you can always find a few HD trucks parked out front.
01. The fill hose and overflow...
01. The fill hose and overflow hose are unsecured from the inlet.
02. There are two fuel lines...
02. There are two fuel lines that must be disconnected from the factory tank. The return line was first and proved easy.
03. The pressure line seemed...
03. The pressure line seemed happy where it was and needed additional encouragement from Steve Smith to be removed.
04. Once removed with a specialized...
04. Once removed with a specialized fuel line removal tool, it’s easy to see why it was being stubborn; some surface rust had accumulated.
05. The factory tank was...
05. The factory tank was readied for removal.
06. This is the first time...
06. This is the first time the factory tank has seen daylight in years.
07. This side-by-side comparison...
07. This side-by-side comparison shows the huge difference between the tanks.
08. The new supplied brackets...
08. The new supplied brackets are very complete.
09. The supplied brackets...
09. The supplied brackets were already hung. No drilling required for this installation!