Forum Discussion
Gdetrailer
Sep 16, 2018Explorer III
memilanuk wrote:
The reason I asked was that like someone already mentioned, there are no DOT certified *auto* transfer aftermarket auxiliary tanks for *gasoline*. Diesel, yes. Gas, not so much. Kind of a bummer.
The reason you can't find a in bed gas tank with fully automatic fill into your vehicle tank is due to the fact that gasoline vaporizes easier than diesel and there IS a mandated "EVAP" system in place to account for the gas vapors.
In a nutshell, one would have to MOVE the "EVAP" vent UP to the tank in the bed.. This is messing with your EMISSIONS CERTIFICATIONS and no aftermarket manufacturer is going to be willing to ante up for the costs involved in proving their system will not cause the OEM EVAP system to fail.
There has been a couple of replacement tank manufacturers that do offer a larger capacity tank that replaces the smaller tank, expensive, yes, but takes care of potential voiding of the emissions systems of your vehicle.
There are plenty of alternative MANUAL solutions if the price tag of a replacement tank leaves you cold..
I use a 15 gallon "landscapers" tank with a electric fuel pump for a car.. Takes about 10 minutes to transfer 15 gallons, we simply take a rest break anywhere we feel like stopping for food or rest or restroom break.
With 34 gallon main tank and about 14.4 gallon in the landscaper tank we now have about 480 mile range for gas.. Allows us to be very picky about when and where we stop for gas.
Before that, have had a few interesting fuel stops trying to get in or out of the stations because we were getting low on fuel.. It was either that or short hop at 175-200 miles in a couple of places adding in an hr or so of delays in extra stops..
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