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Old 06-15-2016, 06:07 PM   #31
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I tow with 7.3 powerstroke in with OD on and on cruise at 65 mph. Get 11.3 mpg.
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Old 06-15-2016, 08:08 PM   #32
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Each vehicle are different... mine don't have towing mode but manufacturer recommend towing with Overdrive off, your owners manual will tell you. As for cruise control I put it on as often as possible and when it's safe to do so, having a heavy foot, cruise control is a must for me!
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Old 06-15-2016, 08:19 PM   #33
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Towing cruise and O.D

I just got done driving from Fort Worth to Iowa City in one shot....15 hours and 855 miles later...I used the T/H and set the cruise at 65-68 and the first half I kept it in 6th and got around 11mph. The second half I used the overdrive and ended up with 9 mph. Sometimes hard to judge with so many rolling hills through OK, MO and IA. It was great all the time in KS.
I forgot to mention that I have a 2012 Ram 3500 SRW 6.7, 3.73 that has been decluttered and chipped with 5 programs.
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Old 06-15-2016, 08:23 PM   #34
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I have found that my Allison tranny knows a lot more about what it needs than I do. With the cruise set at 63-65, exhaust brake on and in regular drive, it rarely downshifts except in the mountains or hilly regions. If it doesn't need a lower gear, it doesn't downshift. Why drive around in 5th when 6th works just fine? Gas mileage between 11.5 and 13.
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Old 06-15-2016, 10:14 PM   #35
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Quote:
Originally Posted by Blackhat6mike View Post
I have found that my Allison tranny knows a lot more about what it needs than I do. With the cruise set at 63-65, exhaust brake on and in regular drive, it rarely downshifts except in the mountains or hilly regions. If it doesn't need a lower gear, it doesn't downshift. Why drive around in 5th when 6th works just fine? Gas mileage between 11.5 and 13.

Sometimes I force it into 6th, to see if it will hold... But usually it will stay in 5th.

One thing I did notice with one of my other trucks.. There was a big load difference bt 5&6.
Sure the rpm was higher in 5th, but the load on the engine was much less. Which would equal higher mpg.


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Old 06-15-2016, 10:21 PM   #36
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Yes when towing turn on the tow/haul mode set cruise at 63-64 and enjoy the drive
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Old 06-15-2016, 10:34 PM   #37
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[QUOTE=muddyrode;1229112]Yes when towing turn on the tow/haul mode set cruise at 63-64 and enjoy the drive[/QUOTE


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Old 06-16-2016, 07:27 AM   #38
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I use tow/haul, Max exhaust break & cruise all the time towing my 12k loaded 5er with Ram 2500 mega cab CTD. Just returned from a trip to Kentucky from Charlotte and the truck performed very well through mountains across i40 and up i75. Set it on 60 to 62 mph and the computer keeps it on speed. Even on those steep down hill grades it kept it on set speed to within 3-5 mph.
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Old 06-16-2016, 07:34 AM   #39
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I use cruise occasionally (not often) only on flat stretches. As others have mentioned, I put it in tow/haul mode and then hit cruise.
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Old 06-16-2016, 07:59 AM   #40
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I have a light trailer 4,000 lbs and a 2013 Chevy 1500 Z71 with tow package. Yes I use cruise on the interstates unless the traffic is really heavy. Unless I am in the mountains or really hilly country I do not use tow/haul . I also turn off Chevy's stabilization control it tends to over-react in my opinion. (i decided cruise was a good idea when I found myself towing our old pop-up at 90 miles an hour in a Wyoming 80 mph zone !)
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