Quote:
Originally Posted by 07bsmcrewmax
Well if you are toyota, the 20 gallon tank would still leave you with about 6 gallons after the gas light came on. J/K That extra 20 gallons would be nice. Im not to educated on these matters so pardon my ignorance, but would you have to have a separate fill neck or would it work with the factory one? Im guessing an extra one  |
When it's an additional tank, in most cases yes - you just put a second filler neck on them. You can route that fill neck in a number of locations, including the wheel well, near the back bumper (convert to a drop down license plate? - maybe the hitch is in the way), or possibly even squeeze it in next to the existing fill neck so that'd it be accessed behind the same fuel door. Putting it in the wheel well is most common.
If you want to put an inbed tank in a bed that has a pickup shell on it, then that's no big deal either, as you can run a fill neck through a camper shell (see example near bottom of this link,
Transfer Flow cross-the-bed tanks). That's how mine is setup on my work truck, although both the tank and the fill neck through the shell setup were made locally. The auxillary tank gravity feeds to the main tank, but I'd recommend a pump for the only reason that I forget to shut off the (gravity feed) valve sometimes, and when they're both near full and I leave the valve open over night, it will overfill the main tank and push fuel out of the fuel system via the fuel system breathers in the engine compartment.
With a 46 gallon fuel capacity, as one of you asked about, assuming an average of 16 mpg, that'd give you a range of 736 miles. What I would recommend is that if you're going to go to the trouble to run a second tank, then get the largest auxillary tank that you can fit without sacrificing your ground clearance (if it's underneath) or taking up more room then you can afford to lose (if it's an inbed tank).
I live in the middle of nowhere, in a town of 4,000 people. It's 200 miles in any direction to a larger town. I do a lot of highway driving both alone and on family trips. It's nice not to have to fill up every time you have to stop for the bathroom, and with a larger tank you can avoid filling up in the middle of nowhere where the gas prices are sometime through the roof. Gas is currently $3.30/gal in my town.