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Old 04-05-2016, 06:13 PM   #11
KnP
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Yes considered air deflectors and such. Apparently the worse turbulence is the wake. The vortices generated on the rear has a lot of force. My truck is fine, has the power to pull it.

A coworker uses some like hockey pucks and he says that safe some fuel, not expectacular numbers but some.

Pulled the trigger and bought the Airtabs. Call me nuts but seems to mimic vortices generators and aviation is some that I know. Is hard to get around a lot of threads looking for what is truth or a myth. There are very few negative comments and most of those are related to MPGs.

The tires are "rated" to 75 MPH. Not asking to go that fast, just able to keep up with traffic without been an obstacle. If I can get 65 MPH without any turbulence issues, us good enough for me.
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Old 04-05-2016, 07:43 PM   #12
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Yes considered air deflectors and such. Apparently the worse turbulence is the wake. The vortices generated on the rear has a lot of force. My truck is fine, has the power to pull it.

A coworker uses some like hockey pucks and he says that safe some fuel, not expectacular numbers but some.

Pulled the trigger and bought the Airtabs. Call me nuts but seems to mimic vortices generators and aviation is some that I know. Is hard to get around a lot of threads looking for what is truth or a myth. There are very few negative comments and most of those are related to MPGs.

The tires are "rated" to 75 MPH. Not asking to go that fast, just able to keep up with traffic without been an obstacle. If I can get 65 MPH without any turbulence issues, us good enough for me.
I installed them on the rear of both sides and the top of our 08 Flagstaff tt and they did eliminate about 75% of the turbulence from semi's passing. Didn't notice any difference in mileage. They are pricey
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Old 04-05-2016, 07:48 PM   #13
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What are you towing and what are you towing with? What WDH are you using?


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Old 04-05-2016, 08:01 PM   #14
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Good deal... I know they are pricey but if does what you say is well worth it in my book. Call it cheap insurance...
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Old 04-05-2016, 08:22 PM   #15
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Pyromedic had my thought....is your signature line what you are towing with....a 2016 Chevy Colorado Z82?? I am no expert, but my thought is a "midsize" truck would put you where your TV is at or maybe even below your TT weight....that in itself should tend to mean you get "pushed around" a bit by what your pulling behind you.

In any case, in answer to your original question..I generally have found with my combo (see sig line for what I drive & tow) that 62-64 maybe 65 mph is a "sweet spot" in the relatively flat or rolling terrain in FLA & southern GA/Carolina's. When I get into hilly country (heading up I-26 into Asheville) I ignore speed and focus on RPM's & temperatures up the bigger climbs......mostly 35-40 mph on ascent it about the most i'm willing to sign up for.
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Old 04-05-2016, 09:37 PM   #16
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The truck has a towing capacity of 7,000 lbs is very capable on that department.

Strange enough... my G8 has a class 3 hitch and a towing capacity of 4,620 lbs with a L76 6.0L V8 and 6L80 transmission, weight as much as the Colorado. The TT is 3,680 Dry Weight.
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Old 04-06-2016, 01:07 PM   #17
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What would be a good rule of thumb highway speed for a TT? The reason that I am asking is that my TT gets a bit dicey when getting close to 65 MPH. Checked my Weight Distribution Hitch adjustments to make sure they are correct; it cannot get any better, pretty much text book perfect.

Read countlless threads and seems to be an aero characteristic from dragging a box down the road tied to the rear bumper.

Can we say that 60 MPH is the top speed before encountering aerodynamic instability?
My best gas mileage is 60-65 so I plan my reservations at CG's according to this and only driving for 5 hours. That gets there so I get setup before dark.
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Old 04-06-2016, 01:16 PM   #18
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Best speed 60-65mph

Speed is not the only thing to look at....

tire observation is very important.

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Old 04-06-2016, 01:24 PM   #19
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I tow around 62mph. Look at what the speed rating is on your tires before going over 65. Later RJD
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Old 04-06-2016, 01:40 PM   #20
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With my Hensley hitch I could tow in excess of 75 without any sway or turbulence from passing vehicles. Tires and safe braking are the limiters.
Running in excess of tire rating for extended periods will shorten the life of the tire and could lead to a blowout. My best mpg is around 60. I do run faster on the interstate but very rarely go more than 65. With LT tires you might have a higher speed rating but the braking factor or handling in an emergency situation still makes high speed towing unwise.
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