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Old 04-06-2013, 08:18 AM   #21
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Location: Nova Scotia, Canada
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About half. 21-23 empty. 10-12 with 14000 lb trailer.

1990 Jayco 250 Special
2008 Ram 5500 DRW 6.7, Cummins, Aisin auto
Holland/Binkley 5th wheel, Reese Dual Cam, and more
232,500 kms in 2013
200,000 kms in 2014
160,000 kms in 2015
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Old 04-06-2013, 08:22 AM   #22
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Location: Merrimack NH
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My 5.4 does the same as tinlizzie23' V10 Larry

Larry & Rachel Demers 2010 19H, 1999 F250 std cab 5.4, Auto, 4:10's 4x4
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Old 04-06-2013, 10:28 AM   #23
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Location: King George
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AHHHHH the beauty of pulling a POPUP. My 4200lbs load with no wind resistance per say is almost non-existence when being pulled by my 2010 F150. I have to look hard at my gas mileage to see any difference.

Probably a conversation number would be less that 3-5%... I consistently use around 24-25 gallons of gas for my 2010 FX4 F150 SuperCab truck with 6.5 foot bed for my trips between King George VA and Gatlinburg TN gassing up at the 450 mile point whether I am pulling my 4200 lb trailer or not. I think it has the 36 gallon tank option. This includes flatland and some mountain long grade hills along US81. This is probably 80% Interstate driving... Normally I gas up around the 250 mile range but since I know where I am going on the Gatlinburg route I will run it out to the 450mile point. We are all creatures of habit hehe...

All of my camping roads seems to go to Gatlinburg from here. Once we get to Gatlinburg then we decide where to go from there hehe...

Strange enough I get better gas mileage going SOUTH then I do coming back to the NORTH on my Gatlinburg trips???.

Roy Ken
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA

"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"
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Old 04-06-2013, 02:30 PM   #24
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Location: Dripping Springs
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about 50%. Going to Indiana this week, my truck averaged 15.2 to 16.2 MPG. Returning with trailer in tow it averaged 8.33 MPG. But, we were hauling on interstate highways at 65 to 75 mph. I suspect that traveling around 60 mph would yield a better result. Time will tell!

2014 Chevrolet Silverado 3500HD Crew Cab, long box, Duramax and 3.73, SRW
Equal-i-zer 1k WDH, 2013 White Hawk 27DSRL

Los Madrones, a little slice of Texas hill country heaven
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Old 04-06-2013, 07:14 PM   #25
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Location: Benson, NC
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50% or so. In the winter I usually get 16 to 18 unloaded on the highway. Our trip this week yielded 9 1/2 mpg on our 340 mile round trip. MPGs are always worse with the winter mix gas... not sure but i feel like the ethanol is making it worse.
2012 Jayco Jay Flight 267BHS - Equal-i-zer WDH
2012 Dodge Ram 2500 Crew Cab 4x4 CTD
Me (Greg), DW & DDx2
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Old 04-06-2013, 11:32 PM   #26
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Location: Waterloo, IA
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How much does your TV mileage drop under full load?

I'll add in my two cents at 50%. 2009 5.4 F-150 and trailer weighs ~9000lbs. 18 mpg empty and 9 mpg or so while towing at 65 mph.
2012 JayFlight 32TSBH (Elite, Thermal, Tech Packages, Power Awning)
2009 Ford F-150 SuperCrew Platinum 5.4L V8/3.73 Limited Slip, 6.5' Bed, Max Tow, and Integrated Brake Controller
Equalizer 12K
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Old 04-07-2013, 05:11 AM   #27
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Posts: 147
Mine goes from 17 empty to bout 10 - 11.5 towing
2008 Chevy Silverado 1500 5.3/ 3.73 Tekonsha Primus brake controller
2011 JayFeather Select 29L
Husky Centerline WDH
w/ active anti-sway
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Old 04-07-2013, 05:50 AM   #28
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Location: Central Illinois
Posts: 27
2013 Chevy Silverado 2500 crew cab 6.6 Duramax
2014 Jayco Eagle 34.5BHTS
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Old 04-07-2013, 06:08 AM   #29
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Location: Courtice Ontario
Posts: 78
Re: How much does your TV mileage drop under full load?

Empty my ecoboost gets 9.7 to 12 L per 100kms depending on driving speeds. Towing 33rlds which is 9900# loaded it drops to 15 to 18 L per 100 kms depending on terrain and speed.
"Another Day In Paradise"

2011 Ford F150 S/Crew Ecoboost HD
2012 Jayco 33RLDS
2013 Four winns h180 ss
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Old 04-07-2013, 07:46 AM   #30
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Location: Sebastian FL
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We get 17 mpg not towing and 11 mpg towing so 35% drop.


John & Nancy
Jay Feather 25Z 2007
Ford F-150 XLT 5.4 Triton 2008
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