RDS Diesel Install Kit for Auxiliary Diesel Fuel Tank - Fits Chevy/GMC Trucks 1999 - 2010, Model# 011029
Easy Installation, Simple Operation
My kit for my 2001 2500HD didn't have the 2 sleeves shown in the photo. Very easy to install. I completed the entire process in 65 minutes including a couple interruptions. In my situation I had to remove the 3 screws that hold the fill tube behind the filler door and drop the neck down in order to complete the cut of the hose. My filler hose had a plastic pipe inside the rubber fill tube that apparently dumps the fuel to the center of the tank. Not sure the benefit of that but it added a few minutes to the install time. I had over 3.5 feet of fuel line left over. I would suggest that you clean the outside of the fuel filler hose before making the cut. Mine was covered with dried mud and the stuff you find in cow pastures.
There's a small ball crimped into the bottom of the elbow. When the factory fuel level drops, the ball drops and fuel flows into the stock tank. When the factory tank is full, the ball rises and blocks the flow from the auxiliary tank. Very simple and uncomplicated operation, sort of similar to a shop vac. The key to success is to mount the elbow as close to horizontal as you can.
After installation was complete, I drove to town and filled the factory tank then put 12 gallons in the auxiliary tank to test for leaks. I drove around for a few miles then drove home and let it sit with the valve open for a few hours. No leaks.
My only regret is that I didn't do this years ago. Based on my average mpg when towing my 5th wheel I should now have a range of over 500 miles
November 16, 2013
Hooked it up in about ten min. Everything you need hose and clamps . You just need a knife and a screwdriver
August 13, 2012
RDS Diesel Install Kit for Auxliary Diesel Tank
I ordered this Diesel install kit and it is very simple and easy to hook up. I was worried about leaving it on for fear it would over fill my tank, but it works properly and keeps the tank topped up with no issues. I was able to go three times further pulling a heavy load and am very pleased with this kit.
May 7, 2012
The install kit worked great . It was fairly easy to install. The only thing that surprised me was there was a inner tube when I cut the filler hose to splice in the fitting for the install kit. I just spread it apart enough to install the fitting. Everything works as advertised.
October 11, 2011
Diesel install kit
I installed this kit on my 05’ Chevy truck; it took no time at all to install. I cut the fill hose with a sharp utility knife that work great. On my truck if you go 150 miles without stopping the gauge will go to zero and stay there until you start to drain off your main tank or stop and start your engine again, which seems to reset the system. Once I installed the adapter I have never shut off the valve and never had a leak, but make sure you fill your stock tank first and install the cap before you start to fill the auxiliary. I pull a mule trailer out west once a year and this makes traveling at night much easier than trying to find a station that is open.
June 25, 2011
This product was easy to install. You will need some sort of sealer for the valve connection into the tank. I used gas line thread tape (the yellow stuff) and after a month, its still holding strong with no leaks. I recommend turning off the valve most of the time. With Chevy trucks, if you leave the valve open on long trips the fuel level sensor will freak out and flip your gas gauge to empty. If this happens to you, just turn the valve off and drive for awhile. When you shut the truck off, and turn it back on, everything should be OK again.
June 8, 2011
Really nice to have
The kit to hook up a aux fuel tank is easy to install. I only had two problems with it. It gives positive pressure inside the fuel tank all the way to the engine. If you change your fuel filter, close the valve and run off the fuel that is above the filter. This way it won't come pouring out. The other thing it is doing if the valve is open with positive pressure, the fuel gauge will read empty at times. Don't know why, but if the valve is closed and the main tank is allowed to drop, the fuel gauge is fine. I will get one for my next truck.
June 5, 2011
Diesel install kit
excellent product, good quality, well made, easy to install
March 14, 2011
Diesel install kit
good product , but you do not get any vent line connections .had to go to local hardware store to get the rest of the kit.
November 17, 2010
Diesel Install Kit
product works great - most reasonable method I could find - If you have elementary tool skills you can install in no more than 45 minutes . need a way to cut the fuel tank hose - heavy shears will do . need to be able to tighten bands on hose barb. The discription gives a warning about the vehicle DCI - I fill the vehicle tank -fill the auxillery tank - leave the valve to the auxillery tank valve closed - drive on the vehicle tank until my guage shows 1/2 to 3/4 tank -stop - cut off motor -open the valve - start back up and drive - the gravity flow will keep up . Each time there after that I stop the vehicle and shut down the motor -the DCI thinks the tank has been filled -it resets itself - an there is no problem . I pull a 37 foot gooseneck with a 2500 Diesel Chev - have 80 gal auxillary tank -22 gal vehicle - tanks makes travel much better .
November 16, 2010