Boomerweps
Hills of PA
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Joined: 04/30/2018
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I experimented my two camping trips trying to keep my speed down to 65mph on the interstates for mileage. I did not keep as accurate a log as possible & just went off the truck computed MPG. I used the cruise control set at 65 as much as possible on the first trip, 500 miles total. Second trip, about 250 miles, I just kept up with traffic about 70mph, sometimes hitting 75mph.
The truck calculations said I got better mpg in normal transmission mode over tow/haul mode when towing. On my first, slower trip, I locked out all overdrives (8,9,10), using tow/haul every time I thought of it (reverts to normal on startup). On the second, I mostly just kept 9 & 10 locked out. That one level of overdrive, in flatter road sections, seemed to make the difference, even though at higher speeds. I intentionally left normal mode on after initially forgetting to select tow/haul.
Yes, wind is a variable factor in mpg. BUT it is out of your control, last I knew ![[emoticon]](http://www.coastresorts.com/sharedcontent/cfb/images/wink.gif "wink")
2019 Wolf Pup 16 BHS Limited, axle flipped
2019 F150 4x4 SCrew SB STX 5.0 3.55 factory tow package, 7000#GVWR, 1990 CC Tow mirrors, ITBC, SumoSprings,
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valhalla360
No paticular place.
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Joined: 08/19/2009
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Boomerweps wrote:Yes, wind is a variable factor in mpg. BUT it is out of your control, last I knew
If you are on a tight schedule, true.
Full timing, I often check the wind forecast. If I'm going to be going into a 30mph headwind...I may wait a day for the wind to settle down.
Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV
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maurice-r
central indiana
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Joined: 09/06/2006
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Just tried to update my rig and states visited, its not accepting the changes. I followed the sticky from 2009...? Oh well.
Thank you for all the positive comments!
Maurice and Brenda
Franklin, IN
2001 Chevy 15 passenger and 1999 Venture pop-up
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LouLawrence
Traveling the US fulltime since 2000.
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Joined: 03/16/2021
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If anyone thinks that adding an air deflector DOES NOT help is delusional. Air going over a trailer vs. slamming into the top of the trailer is a real thing. How much? Can't say, but it's a reality.
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JimK-NY
NY
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Joined: 05/12/2010
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LouLawrence wrote:If anyone thinks that adding an air deflector DOES NOT help is delusional. Air going over a trailer vs. slamming into the top of the trailer is a real thing. How much? Can't say, but it's a reality.
How much? Got any data?
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dodge guy
Bartlett IL
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Joined: 03/23/2004
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JimK-NY wrote:LouLawrence wrote:If anyone thinks that adding an air deflector DOES NOT help is delusional. Air going over a trailer vs. slamming into the top of the trailer is a real thing. How much? Can't say, but it's a reality.
How much? Got any data?
No bug splatter on the front of the trailer means the air is being moved up and over the trailer. Also the .5 mpg improvement says it works as well!
Wife Kim
Son Brandon 17yrs
Daughter Marissa 16yrs
Dog Bailey
12 Forest River Georgetown 350TS Hellwig sway bars, BlueOx TrueCenter stabilizer
13 Ford Explorer Roadmaster Stowmaster 5000, VIP Tow>
A bad day camping is
better than a good day at work!
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LouLawrence
Traveling the US fulltime since 2000.
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Joined: 03/16/2021
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JimK-NY wrote:LouLawrence wrote:If anyone thinks that adding an air deflector DOES NOT help is delusional. Air going over a trailer vs. slamming into the top of the trailer is a real thing. How much? Can't say, but it's a reality.
How much? Got any data?
It's been working for tractor trailer drivers for years.
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JimK-NY
NY
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dodge guy wrote:JimK-NY wrote:LouLawrence wrote:If anyone thinks that adding an air deflector DOES NOT help is delusional. Air going over a trailer vs. slamming into the top of the trailer is a real thing. How much? Can't say, but it's a reality.
How much? Got any data?
No bug splatter on the front of the trailer means the air is being moved up and over the trailer. Also the .5 mpg improvement says it works as well!
I don't see how anyone could detect that small of a difference. It would take a precise fuel consumption measuring device and identical driving conditions. I see huge difference merely due to traffic, wind direction, etc.
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JimK-NY
NY
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LouLawrence wrote:JimK-NY wrote:LouLawrence wrote:If anyone thinks that adding an air deflector DOES NOT help is delusional. Air going over a trailer vs. slamming into the top of the trailer is a real thing. How much? Can't say, but it's a reality.
How much? Got any data?
It's been working for tractor trailer drivers for years.
Again, where is the data? I could not find results of any studies.
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dodge guy
Bartlett IL
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Joined: 03/23/2004
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JimK-NY wrote:dodge guy wrote:JimK-NY wrote:LouLawrence wrote:If anyone thinks that adding an air deflector DOES NOT help is delusional. Air going over a trailer vs. slamming into the top of the trailer is a real thing. How much? Can't say, but it's a reality.
How much? Got any data?
No bug splatter on the front of the trailer means the air is being moved up and over the trailer. Also the .5 mpg improvement says it works as well!
I don't see how anyone could detect that small of a difference. It would take a precise fuel consumption measuring device and identical driving conditions. I see huge difference merely due to traffic, wind direction, etc.
Well 3 years and 20k towing miles after its use shows that it works. I did the same trips big before and after and there was always that .5 difference. Sure sometimes it may have been less, sometimes a bit more but it always averaged .5 better with it.
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