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Old 04-21-2015, 03:36 PM   #31
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The sweet spot in the Volvo is 63 towing @1400 RPM with the cruise. On steep grades it will drop to about 61 and I use the exhaust brake on the down grade. I can flip to the Jacobs brake but then I sound like the supertruckers out here. I will go faster to pass if Uncle Ed and Aunt Bess are going slower.

And remember people. There are two types of folks towing trailers or fifth wheels. Those that have had blow outs and those that haven't, Yet.


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Old 04-21-2015, 03:54 PM   #32
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100 kmph as posted or 90 kmph on secondary roads as posted. Maybe 1 or 2 over, the bigger tires make my speedo a little slower.

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Old 04-21-2015, 05:22 PM   #33
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Originally Posted by DK-in-SC View Post
While heading home from spring break a few weeks ago, we came across the aftermath of the story below. There was nothing left attached to the trailer's frame except the tires and the holding tanks. We wondered what had caused it but then I found this news story online. 60-62 will be it for me.
Earlier in the afternoon, six people – including five children – were critically injured in a crash on I-65 north between Brewton and Flomaton. Three of the injured were airlifted to a Florida hospital while the remaining three were transported to local hospitals. The accident occurred at the 73-mile marker at approximately 2:30 p.m., and involved a Michigan family in a Ford E350 van pulling a travel trailer. Katelyn Sudduth and her family from Winston County, Ala., were in front of the van when the crash occurred.

“The wind was really bad,” she said. “We could see the camper swerving back and forth between the lanes. We were going about 75, and they were right there behind us. We sped up to 85, trying to get away, but they were still coming,” she said. “That’s when they switched lanes and things went bad. The trailer went sideways, and then it all just rolled I don’t know how many times. There were five kids, one adult and a dog,” she said. “The dog looks OK, but the others – well, we hope they’re going to be OK. One boy, he landed in the bushes, but he wasn’t hurt,” she said.

Lambert said two of the occupants were ejected from the vehicle; however, no official word was available on the condition of the remaining occupants.

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I agree 75-85 mph too fast especially in windy conditions. Sadly it sounds like kids weren't seatbelted if they were ejected. I worked trauma way too long to not wear seat belts. Also the reason why I'm not hitting the 75mph despite my tires being rated for it. I hope all heal ok.
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Old 04-21-2015, 06:00 PM   #34
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67 is the sweet spot for my rig. My tires our a Q rating with hitch could drive faster. But I don't understand why 70 feels so much faster than 67 but it does. So besides passing slower traffic 60 to 67 in under 20 on the side wind. Over 25 side wind 55 -60 over 30 we stop or drive slow to a stopping point.
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Old 04-21-2015, 06:27 PM   #35
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If conditions permit, I set the cruise at 63 and enjoy the drive . Will speed up to pass, but then it's back to 63.
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Old 04-21-2015, 08:26 PM   #36
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I keep it about 62 which is about 2100 rpm. Use cruise control on flat country, and try to keep it under 3000 rpm up hills. I have towed faster but fuel mileage drops dramatically. Mileage towing about 9 mpg on Kentucky terrain, drops to about 7 mpg when I push it.

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Old 04-21-2015, 09:07 PM   #37
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Try to get best fuel mileage using tach and highest gear to run at speed limit or just under. Alison trany has to get up to 68-69 and 1900 rpm, after the shift, drop back to 65-66 at 1700 rpm. Holds good for most roads including large hills in TN. All of this with the tow/haul switch engaged. Any thoughts on tow/haul on GM vehicles?
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Old 04-21-2015, 09:21 PM   #38
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I try to tow about 60 to 62 mph. I have noticed my truck does better at 62 mph while towing.
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Old 04-21-2015, 11:08 PM   #39
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In Oregon our interstate speed limit is 65mph. Trucks must go 55mph. They typically go faster than they should, so I just stick with them. I am never in a hurry when on vacation. If the trucks are doing 58 then I am. If they are going 62, then I am.
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Old 04-21-2015, 11:40 PM   #40
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I set my cruise at 65 here in PA. Though in a construction zone I will knock down to 5 over OR the speed of traffic. Out of state it's 10 over posted MAX. I've gotten enough speeding tickets in the great state of PA and don't need any out of state ones. This is with a trailer, If I'm on my way home with my 337 Pete, it'll do 76, so long as traffic in one or more lanes will.

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