Average speed when pulling a 5th wheel - Dodge Cummins Diesel Forum
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post #1 of 84 (permalink) Old 12-14-2019, 10:23 AM Thread Starter
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Average speed when pulling a 5th wheel

I have an 05 dually, 30ft 5th wheel. Want to ask others what your average speeds are while traveling. I want to go from Nashville to Valley of the gods some time in in the spring. My truck has plenty of power to pull quickly
With 50hp injectors and a banks 6 gun, also have 70gal auxiliary fuel tank. Trying to make the most of our 9 days total of away time. It's about 1500 miles each way and google maps makes that an average of 68 mph. Thanks for the replies.


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post #2 of 84 (permalink) Old 12-14-2019, 10:54 AM
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I usually run 60-65mph. Set the cruise and ride on the right lane
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post #3 of 84 (permalink) Old 12-14-2019, 12:12 PM
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I set my CC for 55 -60 MPH

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post #4 of 84 (permalink) Old 12-14-2019, 02:39 PM
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Any time I pull a trailer I drive about 69-65 mph. I often wonder how those guys passing me with a trailer like I'm standing still don't have problems down the road.

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post #5 of 84 (permalink) Old 12-14-2019, 02:59 PM
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I have new tires on truck and RV, good quality. I trust the tires so I usually run about 5 mph under posted speeds on most hiways, 75/80 speed limit roads I am usually at 68/70. With older tires, I ran alot slower. Very heavy traffic I might go a little faster so I'm not the *old fart* blocking the road. When it gets like that, I find alternative hiways, the roads less traveled usually offer better scenery/less jerks giving me a hard/obscene time. IMHO, it depends on your comfort zone, truck/camper/tire/road/wind conditions. With or without a trailer, It never bothers me if I'm slowed down by another RV'r in front of me doing his/her own comfort zone speed.

A biggie when traveling as far/fast as your planning, how old are the RV tires? They can look great but be old, old tires don't like speed/distance. They tend to blow and do an incredible amount of damage to campers.

Edit: My RV tires are LT, the RV sticker calls for them. ST tires... not many (if any) I would trust over 55.
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post #6 of 84 (permalink) Old 12-14-2019, 04:58 PM
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Not a 5th wheel but a 35 ft travel trailer. I'm usually between 60 and 65 for all the reasons in the posts above. The roads in my parts of the country are pretty windy and steep at times and I'm often in a line of cars. I go a bit slower in traffic to maintain a safe distance for braking. I try to time my travel to avoid traffic if I can. The other variable is transmission temp and EGT's. I adjust speed on grades to keep things cool which sometimes means downshifting, even though I haven't run out of power yet. Tires are a big deal. I've had several trailer tire blow outs on other trailers (raft trailers, utility trailers, car haulers, etc.) and don't want to take a chance on my travel trailer. I upgraded my trailer tires to the next higher load range for that reason.
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post #7 of 84 (permalink) Old 12-14-2019, 05:25 PM
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If you use ST trailer tires, the max speed is 55mph!!!! Dont ever use the ST rated trailer tires on any trailer!!!! Use LT (light truck) only as they are DOT rated and have speed and load ratings MUCH higher than those crap ST tires which do not have a DOT rating. Load E minimum. Read up on all the blowouts caused by ST tires and the damage they do to your trailer during a blow out.
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post #8 of 84 (permalink) Old 12-14-2019, 06:32 PM
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Been pulling the same F/W (10,000 to 11,000 lb loaded) now for about 20 years. Truck 1999 (took delivery in Oct 98) 4 wheel drive short bed, Auto, 275 HP RV injectors. Run between Boise Idaho and Yuma AZ most of the time 2 to 4 times a year roughly 1000miles each way. Summer excursions to Black Hills etc.. I ideally I try to run at 68 mph as a target. That is the trucks sweet spot. Try to never going over 70 towing and that is usually just to pass. Current F/W tires rated at 81 mph at max weight of about 14000 lbs again I only run 10-11K that has been scaled many times. Only ran at 11k one time and I knew I was heavy. I find that my average REAL world time is really only 50 mph perhaps a bit more maybe 55 but not much more after factoring in refueling, eating, adjusting for traffic and road construction or condition. That's just the speed and pace we travel at longer distances. If tired I will pull over for a few min. As a rule if I have to go 1000 miles I est. 20 hours of driving time to get there. And figure towing 12 mpg as an average for fuel cost. Empty I run from 18 to 19mpg running 75 to 80. Big variable is traffic and road condition. Results vary . On the tire deal I have run ST's the entire time mostly Goodyears. Never a blow out. One low tire many years ago discovered at RV park with a screw in the tread. But not stupid, anything can happen.
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post #9 of 84 (permalink) Old 12-14-2019, 06:47 PM
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[QUOTE=td1837tom;29170219]If you use ST trailer tires, the max speed is 55mph!!!! /QUOTE]

Well, unless the ST tires are rated for higher speeds. Mine, for example, do just fine at 80. So far, anyway.
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post #10 of 84 (permalink) Old 12-14-2019, 07:52 PM
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I set the CC at 65mph and enjoy the scenery. Even though the trailer tires are rated to 81mph 65 is fast enough for me. How much time are you really going to save by driving 70 of 75 or more going from point A to point B?
I see guys fly past me like I'm standing still towing their giant toy haulers or 5ers and wonder how in the world they would be able to stop in case of a blowout or other emergency.
They're putting their trucks, trailers, family and others on the road lives at risk.
If you get where ever you're going an hour later by keeping the speed reasonable it's no big deal. That's much better than never getting there at all.
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post #11 of 84 (permalink) Old 12-14-2019, 07:53 PM
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Agree with having good tires and properly inflated. I carry a heat gun and at stops check the temp they are running.
Next on the shopping list is a set of tire pressure monitors, will pick up a slow leak and allow you to stop/change it before a blowout.

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post #12 of 84 (permalink) Old 12-14-2019, 07:56 PM
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Quote:
Originally Posted by Gr8bawana View Post
How much time are you really going to save by driving 70 of 75 or more going from point A to point B?
That's easy to figure out. If you go 10% faster, you get there 10% sooner, for example.
But as you point out, it's also important to get there in the first place.
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Maybe if we start telling people that the brain is an app, they will start using it?

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