Too much power.
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Lead Driver
Joined: Jan 2002
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From: Itinerant
Too much power.
I don't know about anybody else but after pulling the 5th wheel around I have to keep an eye on the speed getting above 70 is way to easy if not paying attention.
This 6.7 power is outstanding and the engine brake isn't to shabby on the down side of the mountain.
This 6.7 power is outstanding and the engine brake isn't to shabby on the down side of the mountain.
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Joined: Jan 2007
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I've only towed about 5 or 6 times with mine but I always use the cruise control. It rarely, if ever, shifts down to 5th gear. If I see a substantial grade I hit the brakes and ease into the throttle to keep up speed. I only run between 62-65 to keep it safe and the fuel mileage up. I think it would do 100mph no problem.
Hotshot
Joined: Oct 2006
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From: Texas
Cargo Master
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From: Door Cty/Florida
Bruce
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Post Fiend
Joined: Jan 2009
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From: Greenwood, SC
I tried to rep you Bruce, great comment.
When I accelerate from a stop there are times that I back off the throttle because all that pull stress on the hitch and kingpin kind of makes me twitchy. If we go full throttle just try to imagine what the forces are on that area!?!? Especially when the turbo kicks in and the "rush" hits.
Towing with these diesels is just a pleasure, hands down. I would think it would be equally nice with the other brands too, but dang, the SD is one darn fine tow vehicle. It's why I have one.
When I accelerate from a stop there are times that I back off the throttle because all that pull stress on the hitch and kingpin kind of makes me twitchy. If we go full throttle just try to imagine what the forces are on that area!?!? Especially when the turbo kicks in and the "rush" hits.
Towing with these diesels is just a pleasure, hands down. I would think it would be equally nice with the other brands too, but dang, the SD is one darn fine tow vehicle. It's why I have one.
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Joined: Aug 2008
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From: Frederick, MD
Run that oil temp as high as 248 on a long pull.
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Lead Driver
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From: Itinerant
After years of reading the forum and the diesel sections it certainly is a pleasure/ reassurance how these 6.7s (maybe the early 11' not included) have very little problems.
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Elder User
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Mine has 1 1/2 baths but I haven't hit a grade that needed 4th gear. I went over Arbuckle Mountain on I35 and never shifted out of 6th. I ease up on it and let it slow down a little. On the same grade with the 6.0 I could do it at speed but it would shift down and get a little hot. The 6.7 temps stay normal. I haven't seen much in the way of grades yet but I'm pulling to FL, TN, GA, and AL this summer so I may see some 5th gear action.
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From: S/E Michigan
More Turbo
Joined: Feb 2013
Posts: 618
Likes: 69
It does have a de-tune feature. Use less skinny pedal, no real magic there. Also, just because it has 400+ hp, does not mean you have to use all of it. Seriously, it's a simple matter of physics. Going faster or running it harder is going to cost you more fuel. Put a phone book under that go pedal and you have the de-tune you are looking for.