Jayco RV Owners Forum
 


Reply
 
Thread Tools Display Modes
 
Old 11-20-2011, 04:37 PM   #41
Senior Member
 
cekkk's Avatar
 
Join Date: Nov 2010
Location: Murrieta
Posts: 2,421
MPG discussions all seem to boil down to ten mpg, with the occassional 7 and 13. I get 10 with my big 7.3 pulling just over 9000# between 55 and 65. Very little difference between those two ranges. My cousin pulled a 3500 pounder with a Honda something or other and got - then mpg. I've spoken to over-the-road truckers and the ones I've spoken to seem to agree. It's the drag, not the weight. They should know. As for diesels, I'm not sure I'd get another these days. The old 7.3s go forever, but I own it, and a new one costs a whole bunch over gas, and with gas $3.28 and diesel $4.00, it really would give me pause.
__________________

__________________
'11 Eagle 320RLDS
'02 F350 PSD Dually 4WD
DW's Ride, '13 Expedition
cekkk is offline   Reply With Quote
Old 11-21-2011, 09:45 AM   #42
Senior Member
 
Seann45's Avatar
 
Join Date: Jun 2010
Location: Saskatoon Sask Canada
Posts: 9,701
Quote:
Originally Posted by OnTheGo View Post
We have a Tacoma V6.

I would like to be able to go a little faster, and get a few more MPG.

Thanks.
Go faster get worse fuel economy... fact of life... Trailer tires, ST, are only rated for 60 mph... going faster just begs for more problems...
__________________

__________________
Seann
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
175 days boondocking in 2017
215/2016, 211/2015, 196/14, 247/13, 193/12

Seann45 is offline   Reply With Quote
Old 11-21-2011, 10:07 AM   #43
Senior Member
 
Join Date: Aug 2011
Location: Missouri City, The Republic of Texas
Posts: 3,010
Quote:
Originally Posted by OnTheGo View Post
I would like to be able to go a little faster, and get a few more MPG.
I would too, plus win the lottery. As a related (maybe) note, this morning I spotted an article on CNN relating some researchers seem to have measured neutrinos travelling faster than the speed of light. So maybe there's hope for us if some of the lesser laws of physics that affect us can be repealed. Think of it, hauling an 8k# TT down the interstate at 80mph (that's almost 130KPH for those of you north of the border) at 15-18 mpg! That's worthy of a new building at Epcot.
__________________
Cheers,
T_

2013 F-350 CC SB 2WD 6.7PS
2013 Eagle Premier 351 RLTS
-SOLD- 2012 X23B
-SOLD- 2003 Ford Expedition 5.4, Bilstein shocks
RedHorse1 is offline   Reply With Quote
Old 12-11-2011, 08:08 PM   #44
Senior Member
 
Wyotraveler's Avatar
 
Join Date: Nov 2011
Location: Northwest WY
Posts: 157
I have a 2008 F-250 FX4 with the V10. I was getting 10.2 MPG towing the Jayco 19RD from WA, ID, MT, and down into WY. We did have several mountain passes on the trip. We towed about 70 MPH most of the way except for steep or icy grades.

If I had a much larger TT I think I would have to go to the diesel for pulling power due to the steep mountain grades in this area.
Wyotraveler is offline   Reply With Quote
Old 12-13-2011, 07:46 AM   #45
Senior Member
 
Join Date: Oct 2010
Location: Merrimack NH
Posts: 804
on the go-- You might invest in an expensive cap for the bed of the truck. When traveling, the air your pulling against ( drag) is going over your roof, down over the truck bed and smack into the front of the tt. The cap will reduce the frontal area of the tt by quite a bit, you can do some math and figure it out, but you are still stuck with the exposed side area. A full size pu will take care of some of that but probably not worth the cost for just that reason. Larry
__________________
Larry & Rachel Demers 2013 F150 Eco Boost Super Cab 6.5 bed 6 sp. 3.31 4x4
29BHS ECO is offline   Reply With Quote
Old 12-13-2011, 10:25 AM   #46
Senior Member
 
cekkk's Avatar
 
Join Date: Nov 2010
Location: Murrieta
Posts: 2,421
19H, I've got that cap, pull about 9k pounds worth of TT and get 10 mpg. Our previous rig had an 8' open front deck, so with A frame, the box was about 12 feet behing my truck weighed about 5500# without ATVs up on that deck and about 7000 with them. Got 10 mpg. The biggest factor for me is headwinds or tailwinds.

A cousin has a Honda Ridgeline pulling an Eco TT weighing less than 3000#. This summer he drove the setup from California to New York and back. Got 10 mpg. Seems there's a pattern here.

A few months back there was a fairly long thread about the influences on fuel mileage. I think it was on another forum. Professional truck drivers and many who seemed to take an engineer's approach commented. What I took away from those discussions, backed by my own experience of getting better mileage with heavy but low ceiling loads, was that it's wind resistance that controls. Of course, excessive speed will affect mileage greatly, but if we discount extremes, most of our diesels pulling ten foot plus trailers get about 10. Gas engines it seems to me get 10 or less.

After reading that thread I spoke to a good friend of mine who drove over 2 million over-the-road miles in semis, and he agreed, weight was a factor, but wind resistance was the big mover.

I spoke about this to two caravaning truckers at a diesel stop a month or two ago. I asked if their farings helped a lot. They said the advantage was minimal, but then pointed to the side skirts on their trailers, something I had never noticed. Apparently, these smooth out airflow and do help. All this points to resistance being of paramount importance in the mileage game.

I'd love to hear from owners of Hi-Lo's and compare their mileage to similar,
but taller, weighing trailers.
__________________
'11 Eagle 320RLDS
'02 F350 PSD Dually 4WD
DW's Ride, '13 Expedition
cekkk is offline   Reply With Quote
Old 12-15-2011, 11:45 AM   #47
Senior Member
 
RoyBraddy's Avatar
 
Join Date: Sep 2011
Location: King George
Posts: 2,397
Thats the price you pay for solid walls..... The wind drag of the higher trailer is what is hurting your gas mileage. We currently have a OFF-ROAD POPUP and we consistently get 20-21MPG with our 2010 F150 truck whether we are pulling the POPUP or not. The F150 doesnt know the trailer is back there I guess...

Momabear is wanting to get something with solid sides now and have been looking at the JAYCO X213 trailer. I know this is going to drop my gas mileage back to 10 or 11 MPG if I'm lucky. Not really a whole lot you can do about it. Just drive 50-55 and dont do anything sudden like. Keep the foot out of the gas peddle... Let the kids have the roadways.... You most always pull right up behind the speeders at the next stop light anyway...

For some reason we seem to get our best gas mileage when using Shell gasoline ????
__________________
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS

"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"
RoyBraddy is offline   Reply With Quote
Old 12-21-2011, 07:46 PM   #48
Senior Member
 
rog4kneer's Avatar
 
Join Date: Oct 2010
Location: New Hampshire
Posts: 163
I towed a 22 foot skylark with a toyota 4runner V6 4.0, 2010. Am serious when I say that I got around 14.2 miles per gallon towing. I went from Cabot trail in Nova Scotia to the North Carolina border clocking about 10000 miles. The fastest I went was 65. Mileage would go up as I was cruising on flat ground or downhill, and down when I climbed. Was not happy with performance in hills. Ended up getting a dodge 1500. Really worked at trying to keep the eco light on all the time.
rog4kneer is offline   Reply With Quote
Old 12-22-2011, 07:42 AM   #49
Senior Member
 
Wyotraveler's Avatar
 
Join Date: Nov 2011
Location: Northwest WY
Posts: 157
Some of the newer vehicles do have better fuel efficiency. If I was going to do most of my towing on flat land I don't think I would put the money into a high HP tow vehicle. Out west we do have some steep mountain passes. If I didn't have the 6.8L V10 I think I would go to the diesel. I get 10 mpg and 9 mpg over the mountain passes towing the 19RD.
__________________

__________________
2012 Jay Flight 19RD TT
W/thermal package: R19 walls, R22 roof, R24 floor
2008 F-250 Ford FX4 6.8L V10/4.10 rear axle
Curt class V hitch
Reese trunion WD with dual cam
AC6CV/7 ex-W8RUR since 1954

Wyotraveler is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 03:26 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.