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Old 11-03-2014, 12:07 AM   #41
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Someone may have, if they drove on a highway at less than 15 mph. Shift lever has to be in low or reverse.
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Old 11-03-2014, 12:12 AM   #42
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As I said was said, in post #34. Yes, need L.
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Old 11-03-2014, 08:52 AM   #43
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We're still considering the 3.0L diesel in the Ram, and would love to hear how it does, particularly with a 21' on the steep grades and higher elevations. Seems like a couple of our forum have that particular engine in either the Ram or Jeep. We almost bought one last week, but decided to give our 2003 V-6 (245 hp/282 lb-ft) a whirl on the initial pick-up and trip home.
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Old 11-03-2014, 09:57 AM   #44
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I just bought a new 2014 Ram, but stayed with the 5.7 Hemi. I'm not convinced that these small motors like the 3.6 ecoboost and the Ram 3.0 will last or are as durable as the larger motors. They are bolting on turbo's to make these small engines work like the bigger ones, just not sure over the long haul there will not be issues. Besides that the premium for fuel and urea (which I throw away every day when I clean the litter box) as well as the up charge. I may be wrong, just my .02$ worth.
I'm very happy with the new Ram with the 8 speed and 3:21 rear end, getting 14-15 mpg towing and 18-20 not towing which is a lot better over the older 5 speed hemi that got 12 mpg, towing or not.
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Old 11-03-2014, 10:55 AM   #45
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Quote:
Originally Posted by Rossue View Post
Was hoping to see an engineer weigh in on this but I've done some research and am sure to be corrected if there's any errors: Toyota doesn't mention anything in their Tundra specs about engine grade braking. They do mention large brakes. On the other hand several including myself have reported the benefits of the grade braking on their GM trucks/suv's.

From GM: Available on Savana, Sierra, Yukon, and Acadia, tow/haul mode raises transmission up-shift and down-shift points to alternately give you more power to accelerate, and greater access to engine compression for deceleration with less noise and harshness. Excess shifting when towing or hauling excessive loads is also reduced.

Do Toyota trucks have this same technology?
GM has two systems. Trailer grade braking is part of tow/haul mode. When you start to apply the brakes it senses that action an begins to shift down. The harder you apply the lower gear it selects and more control over speed it applies. Consequently once it takes over, very little braking is required. Once you apply the accelerator, it senses that at automatically up shifts. It makes descents so much easier. You have way less white knuckle effect. Beats the heck out of manually shifting up an down. You do have the option of going to M mode and bumping gears up and down manually with +/- button. I did this a couple times of some really steep grades where I wanted to control speed even more. Tow/haul worked 99% of the time.

Descent control is a whole different feature that is part of their off road package. It is made for low speeds on rough terrain. Different deal from grade braking. For us Escapees grade braking is what we need for highway speeds.

They also have hill start assist that helps on up hill when taking of from a stop. Applies brakes automatically to hold vehicle until power trains begins to pull. Make that a lot easier too.

Love technology!
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Old 11-03-2014, 11:31 AM   #46
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What does one do when the engine/tranny braking is not enough? Going through the Rockies this fall I had the Ecoboost bring me down to 3rd gear, as Carl said, depending on how much brake I applied. On many hills in 3rd (of 6) would allow it to creep up to 55 mph at which time I'd use the brakes to get down to 45 or so. 5 miles or so of that and the brakes are getting down right hot. After the fact I've been told to manually take it down to 2nd. Was kind of worried about how high the rpm gets when one does so. It does slow you down though. So how low should you go on the tranny, and how high on the rpm? I didn't make note of it at the time but it sure sounded high.
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Old 11-03-2014, 11:52 AM   #47
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The first time we experienced the auto grade braking we thought we had a mechanical problem because of the racket. It did rev the motor up over 3K suddenly. One of those things you get used to and it is very effective. Know this runs counter to all previous advice on cruise control, but what I do is set the cruise say at 40 mph, then when it hits 44-45 the grade braking kicks in. I notice this tachometer doesn't indicate a red line which seems odd.
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Old 11-03-2014, 11:55 AM   #48
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I noticed that about CC, seems to hold your speeds pretty darned good on the down hills as well as flats and hills. Didn't try it on mountain roads though, just the highway.
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Old 11-03-2014, 02:00 PM   #49
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Quote:
Originally Posted by Bill and Earline View Post
We're still considering the 3.0L diesel in the Ram, and would love to hear how it does, particularly with a 21' on the steep grades and higher elevations.
Like Jim, I have the gasser 5.7 but haven't towed (yet) with it. The truck is fantastic though, as I hear all the newer Big 3 units are these days. If you plan to get off dry pavement (much), I would suggest looking into Dodge's "part time" vs "auto mode" 4x4 systems.

Found a forum for you to peruse, in case you hadn't seen it yet:
RAM 1500 Diesel Towing & Hauling
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Old 11-03-2014, 02:30 PM   #50
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Quote:
Originally Posted by padlin View Post
Going through the Rockies this fall I had the Ecoboost bring me down to 3rd gear, as Carl said, depending on how much brake I applied. On many hills in 3rd (of 6) would allow it to creep up to 55 mph...
... After the fact I've been told to manually take it down to 2nd. Was kind of worried about how high the rpm gets when one does so.
What was the engine speed in 3rd, and what would it be in 2nd?
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