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Old 08-02-2012, 11:15 PM   #11
gartonhl's Avatar
Join Date: Jun 2009
Location: Fulltiming
Posts: 166
We just finished a 5,500 mile, 4 month trip starting in Fort Worth, TX with travels to NM, AZ, So. CA, No. CA, NV, CO and back home. We drove the highs (Red Mountain and Monarch Passes in CO., 11,000+ feet) to the lows (Death Valley’s Badwater Basin, -282 feet) and in temps that varied from 48 degrees to 113 degrees and in all wind conditions.

Our MH is the Georgetown 378TS. We are full-timers and are fully loaded out. We tow a 4dr, 4WD Jeep Rubicon, four down. We run the generator while driving for A/C and computer purposes.

I try to stay at around 2,200 RPM and 62-65 MPH.


I feel the dash computer is as accurate as you can get over this many miles driven. Manual tracking calculations and filling your gas tank the same each time will only make a minuscule difference and is not worth the time.

Pete and Patty
2010 Georgetown 378TS; 2012 4dr Jeep Rubicon
1 Yellow Lab (hers);1 Little Bitty dog (mine)
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Old 08-18-2012, 09:50 PM   #12
Join Date: Apr 2012
Posts: 84
Does the 378 hold 75 or 80 gallons of gas?

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Old 08-18-2012, 09:57 PM   #13
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Join Date: Dec 2011
Posts: 3,530
Originally Posted by manvel View Post
Does the 378 hold 75 or 80 gallons of gas?
According to Ford its 80 gallons, however due to vapor space required and low fill neck position its quite a bit less.
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Old 08-19-2012, 05:33 PM   #14
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Join Date: May 2011
Posts: 125
I think the tanks on the 2010 's and older are 75 gallon, and the newer ones are 80. The window sticker on my 2011 on a 2010 chassis says 75 gallons.

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