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Old 05-05-2015, 07:12 AM   #11
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Just did 2000 mile round trip from NY to Nashville, and used it the majority of the ride. I always tow with Tow Haul on, and between that and CC, I maintained same speed up and down hills, some being steep, and had better MPG. Of course, weather and road conditions have to be considered when using CC; I personally would never use it in the rain.

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Old 05-05-2015, 07:17 AM   #12
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If you have it use the tow/haul mode and set the cruise and basically forget it.. HOWEVER if the transmission starts hunting for a gear (shifting up and down) then take it out of OD.

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Old 05-05-2015, 07:20 AM   #13
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I didn't with my half ton as it would downshift to unreasonable gears to maintain speed. But with the 496 CI in the Avalanche, It rarely leaves 4th gear with a tune that claims +60 ft lbs I am over 500 !!
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Old 05-05-2015, 07:33 AM   #14
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Yes with Tow/haul engaged. If in heavy traffic or it starts hunting for gears I take over.
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Old 05-05-2015, 07:36 AM   #15
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I do it all the time now with my 6.7. When I had my 5.4 gasser it was always hunting for gears so I would never used it.
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Old 05-05-2015, 09:50 AM   #16
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I use it with my Ram CTD. But not with the TH mode on. TH mode only changes the shift points. No shifting when just cruising down the freeway.
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Old 05-05-2015, 10:14 AM   #17
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Like most others here, I use it. More so now with the bigger TV. When I was towing with my 1500, I had to do a lot more work (more driver input because of a marginal setup), but with my 2500, I set it and forget it. The truck will actually refrain from shifting quite a bit even on moderate grades. If I see a big grade coming, I'll put my foot in it to pick up some momentum. If the grades are constant up and down, I'll disengage the CC and go back to manual.

Here in TX, we have A LOT of LONG flat roads, if I didn't have cruise, my knees would be killing me before it's all done with.

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Old 05-05-2015, 10:29 AM   #18
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I run with cruise control on almost all the time. In tow/haul mode with the exhaust break enabled, the truck holds speed without a problem. Even up and down grades. The only time I don't use it is on very curvy roads where I constantly need to speed up and slow back down.
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Old 05-05-2015, 02:02 PM   #19
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Use it every chance I can on highways. I find it is easier on the engine and wallet overall except for excessive grades both up and down, then I take it out to work the grade as needed. Never on the steep declines as it does not use the engine as a brake, compared to manual in tow mode.

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Old 05-05-2015, 02:13 PM   #20
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We always use cruise with tow/haul mode and it works great. Put on more than 10K miles in the last few years and most of that mileage was in cruise mode. The 3:73 gears makes it nice and smooth and it very seldom down shifts. It worked great in the hilly areas also. A friend of mine has a 3:50 gear in his TV and he complains that it is always going into and out of OD, so he does not use cruise.

Amazing another person with a self imposed 62mph speed limit.


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