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teamfamily5's avatar
teamfamily5
Explorer
Oct 12, 2014

Auxillary/transfer fuel tank in pickup used for generator

I just bought a champion 9375 watt portable generator the one with a 50 amp RV plug 699.00 at Costco. 8 hour run time at 1/2 load going to be securing it in back of 3500 ram and was thanking about putting a 50-60 gallon transfer or auxiliary gasoline tank in the truck also. Question is how do you use the transfer tank to feed the generator gas when the generator is in use. I want to be able to run my generator for 3-4 days without having to refuel generator? Any recommendations from personal experience?
Thanks in advance :)

16 Replies

  • sdetweil wrote:
    Most aux tanks are not certified for gasoline.


    Exactly, evaporation control is the issue.
  • Roy plan on running it anywhere I choose one of the reasons I gave up neighbors and went full time :) but probably won't ever be in one spot long enough to run it that long but if I'm going to add extra fuel tank why not go bigger plus plan on using it in the future to build barn fence horse stall hunting cabin ect.. Just mainly don't want to be in a rest area or truck stop for a day or so and have to get up out of bed and refuel.
  • RoyB's avatar
    RoyB
    Explorer II
    Just curious have you have researched where you will be allowed to run your outside generator for long periods of times...

    Granted many public campgrounds will have generator run time restrictions in place. Alot of the NATL FOREST areas may allow you to run a generator from 8AM to 8PM but the ones we usually find still have the two hours in the morning an maybe three hours in the early evening. Never allowed to run after 8PM anywhere... Your high wattage CHAMPION generator is going to be pretty loud as well...

    This only leaves PRIVATE places and perhaps some OHV Camping - Dispersed Camping in the Western States. Not much of that style of camping located here on the East side of the USA including Texas and Okla.

    Putting alot of money into a generator setup with extended run time etc and then finding out there isn't many places you will get to use the system would sure impact some of my planning thoughts...

    Just curious how you are finding this availability to use where you will be camping...

    Roy Ken
  • Fred yes have dully I've read about using the gen fuel cap and gravity with a control value so you done old the gen just was wondering of a more secure way with less chance of fuel leakage and really didn't want to drill any holes in new gen
  • You might want to consider a toolbox fuel tank combo, or other fuel tank that fits into the back of a longbed truck. Then get a way to hook up a fitting from the bottom of the tank to the generator fuel cap. If they are about equal height, you might get gravity fill- without overfilling.

    As for personal what I have done, it is a boat type fuel tank with a fuel line and hand prime bulb on it. It can hold about 6 gallons and if slightly above the generator fuel cap, it will slowly drain into the generator.

    After a few hours, you can take the boat fuel tank and refill it, while the generator keeps running on it's built in fuel tank. Then prime the bulb again, and the small tank will start feeding the stock tank again.

    I am hoping that you have a dually truck, able to handle the extra 500 pounds you propose!


    Good luck!

    Fred.