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Old 03-25-2014, 05:29 PM   #21
homer3
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Wow what a variance in towing speed. Here in CA there these midsize black and white things on the road that tend to make me follow the posted speed limit when towing my 5er. Very seldom do I get over 60 unless Im on a uncluttered freeway smooth in traveling.
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Old 03-25-2014, 10:11 PM   #22
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WOW! am I the only one that goes 55? Yep, that is my speed someeeetimes, I'll get to 60, now without the trailer is a different story.

I am right there with you
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Old 03-26-2014, 01:21 AM   #23
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I would like to say I never go above 65- but... I do get a case of speed creep on long drives.
When in traffic- 60-65 max-I'm worried about stopping distance with stupid drivers on the road.

My problem is in early mornings on open highways when the trucks are going 70+. I seem to speed up then. I seem to forget I'm pulling the 5th wheel.

slower is safe- and more enjoyable.
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Old 03-26-2014, 05:38 AM   #24
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Another vote for 60-65....

Few years back, we had a blow out doing 75ish... Learned a few lessons that day.

Lesson 1. ST tires are rated for 65 mph max...
Lesson 2. You may not know you've had a blow out until a chunk of rubber hits your windshield...
Lesson 3. Changing a tire on a 5th wheel and on the side of the interstate sux...
Lesson 4. A blow out on a RV can do lots of expensive damage...
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Old 03-26-2014, 05:59 AM   #25
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Smile

60mph max even though our tires are rated to 75.

Getting to speed is not a problem and the diesels just hum. It is the stopping I worry about.

Slow down and enjoy the journey.
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Old 03-26-2014, 06:21 AM   #26
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Originally Posted by Ken / Claudia View Post
Post #8 applies to Oregon, the truck speed law is about a page long. But, main point ANY vehicle or combo ie (pickup with RV) that has it's current weight 10,000 lbs plus is to follow max. speed for trucks, that is 55 in Oregon. That weight is not based on the vehicle GVWR but real phsycial weight. Passenger vehicles and combos under 10,000 are allowed the other max. speeds which can be 60, 65, 70. Any vehicle pulling any trailer is not allowed to use the left lane unless passing slower trafiic.
Thanks for posting this. Living in CA, we always travel at 55. When out of state, we bump it up to 60. I did not know about the Oregon law (can't remember ever seeing it posted). I trucked through Oregon for many years back when the national limit was 55. Ever try to keep it at 55 at 3AM on that long straight stretch south of Bend? Guess we'll keep it on the good ole' double nickel when we travel in Oregon
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Old 03-26-2014, 09:22 AM   #27
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The truck speed signs are few but, say something like, trucks, school bus, worker bus, vehicles over 10,000lbs. It is when you go into the law and read all that applies. Like said it is about 1 full page of what is and is not included. Things like passenger buses(Grayhound) is exempt, they can go 65, they must have a good lobbyist. I am not saying troopers stop Rvers for traveling at passenger vehicle speeds but, they can, if they believe the combo is over 10,000lbs. In Portland the Trucks and RVs driveing in left lanes is the problem during daytime.
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Old 03-26-2014, 12:04 PM   #28
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HEY JEFFS I AM TYPING CHALLANGED!!!!!
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Old 03-26-2014, 02:11 PM   #29
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Speed does not determine damage

Recent facts:

* 62 mph, steady, FL Turnpike.
* Bus pulls alongside and points and slows drastically.
* NO sense of tire down.
* Immediately pulled over.
* Tire shredded.
* Spare installed by passing truck tire road assistance.
* Could not find similar replacement tire within 50 miles of Disney.
* Drove 450 miles home without a spare!
* Took RV to major rv center for insurance claim and repair.
* Will be out of service at least 5 weeks.
* Total estimated damage $3, 300.
--------------* My deductible + tire = $1300.--------------------------
* RV not moving until repaired.
* RV not moving without Tire Pressure Monitoring System'
* RV has been traded for a 2015 Forest River Silverback 33rl (in production)
* Heading to S Florida to pick up new unit at end of April.
==================================================
End of story....hopefully happily ever after!!

P.S. 2 days prior to starting the trip had unit at CW for full brake inspection, wheel bearings repacked and visual inspection of all tires. Also, before trip and daily, checked air pressure and moving days lug not torque.

The tire separated and acted as a whip ripping the coroplast to shreds as well as all of the under structure of the slide room. Ripped exterior metal fore and aft of the plastic fender skirt. Broke the fender skirt. Thankful for Gorilla Tape!!

NOTE: NOT UNHAPPY WITH KEYSTONE. We have a 2011 Outback 329fbh and enjoyed it. We fell for this new rear living unit at a show and special ordered the heck out of it... Cathedral ceilings, convection oven, dual air, new style outdoor access, slam latch doors, washer/dryer hookup, greater R Factors, heat pads on all tanks from factory, fantastic fans, kitchen and bath, TrailAir fifth wheel hitch Fabric vs leather furniture
top of the line Trump Pillow Top Mattress and more....

I am over 70 so figure 3 to 5 years of towing and then hopefully park it in the N Georgia mountains, sell the truck and use it as a go to place.

Be careful out there BUT, things can and will happen.
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Old 03-27-2014, 05:04 AM   #30
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I've got full gauges on my CTD and my pyrometer and boost gauge show my sweet spot at 1800rpm or 62mph.
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Old 03-30-2014, 10:26 AM   #31
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Another way to look at it..do the Math! I'm not very good at Math but...

70mph x 3hr = 210 miles = increased blowout potential = $$$ in Repairs
65mph x 3hr = 195 miles = an extra 5 minutes per hour

Weigh the risk benefit ratio and I think I will drive 65....
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Old 03-30-2014, 10:48 AM   #32
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Another way to look at it:

Avg MPG @ 70MPH = 7.8
Avg MPG @ 65MPH = 9.8

2000 mile trip at 70MPH = 256 gallons @ 3.79 = $970
2000 mile trip at 65MPH = 204 gallons @ 3.79 = $773

Total increase in "behind the wheel time" at the slower pace: 2.2 hours

That's $197 savings. Enough for an extra night (or two) at a good campground and dinner out at a nice restaurant both nights....

OR: one Maxxis 8008 installed and balanced plus some left over for BK or McD's......
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Old 04-02-2014, 12:53 PM   #33
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That's $197 savings. Enough for an extra night (or two) at a good campground and dinner out at a nice restaurant both nights....

OR: one Maxxis 8008 installed and balanced plus some left over for BK or McD's......
John,
A new Maxxis installed and out the door with metal valve stems and balanced.$147.00 each, so you have $50 extra dollars. Thats in central NC! So really you could get a nice steak dinner for two or more around here!
I just replaced two of them, So now all 4 tires are maxxis 8008s.
And I drove 60-62mph this last trip going and coming to campground.
I just checked mileage on both fill ups. I averaged 11.59mpg which is very good..and I am very pleased with that mpg.
randy
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Old 04-06-2014, 06:33 AM   #34
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I've found that traffic and road conditions permitting 62-63 MPH is a good cruising speed for our truck and the rig as a whole travels well at that speed. Seems to be a reasonable balance between speed and economy. Going much faster changes the ETA little but affects the fuel economy negatively far more.
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Old 04-06-2014, 07:05 AM   #35
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Howdy All;

From my own experience (over 10 years and more than 1,000,000 miles over
the road driver), no road will allow you to maintain much better than an overall
average of 2 hours per 100 miles. What with the changes in grade and traffic.
So, ... why waste the gas / diesel at the higher speeds ... math is great just
not accurate for mileage averaging.
Check it out next trip, doesn'tmatter if you are towing or not.

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Old 04-06-2014, 07:43 AM   #36
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I'm sorry gang ... I should know better .... but I could not resist.
That's rough.. LOL
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Old 04-06-2014, 09:46 AM   #37
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I have to agree with 60mph. I have lost tires at this speed and it is not pretty, but the damage is a lot worse at higher speeds. 7% mountain grades in the west I ascend at about 55, descend as low as 37, this avoids excessive brake usage. Some of these grades go for miles.
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Old 04-06-2014, 08:42 PM   #38
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Those western grades really make the exhaust brakes on these newer trucks worth it. Can descend most of those grades at close to speed limits and never touch the brakes. Had the truck in for service a Chevy dealer a couple months ago, and service rep said mechanic indicated the brakes looked almost new, this at almost 50k miles.
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Old 04-07-2014, 05:00 AM   #39
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Texas has a lot of interstate miles with 80 mph limits. The new toll road near Austin is 85mph. The typical 4 lane rural state highway is 75 mph. Most folks run at 4-5mph over those limits. If you're driving 55 in those areas, the closing rate of other traffic is very fast. Be careful.
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Old 04-07-2014, 06:05 AM   #40
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Quote:
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Texas has a lot of interstate miles with 80 mph limits. The new toll road near Austin is 85mph. The typical 4 lane rural state highway is 75 mph. Most folks run at 4-5mph over those limits. If you're driving 55 in those areas, the closing rate of other traffic is very fast. Be careful.
Well, here in the People's Republic of California, any vehicle towing is limited to 55 mph. There are many stretches of interstate where the posted limit is 70 mph. We are almost always forced to deal with impatient drivers tailgating and/or making dangerously close passing maneuvers. Some of these young "gentlemen" (and even some young "ladies") will even wave as they pass, albeit with only one finger. I am aware that we will be in someone's way while we travel at 55 or 60 mph. But I don't let other drivers dictate how fast I travel.
Just sayin'
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