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Old 12-12-2009, 09:21 PM   #15
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When I run my coach, I run it up on temp and may run it for a good 45 minutes
My manual states that extended idling is bad for the engine however trucks idle for hours at a time. I know that the truck engines run on less cylinders when idling. Maybe motor home engines don't have this feature?

2008 HR 340 Cummins, Vacationer XL
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Old 12-13-2009, 06:40 AM   #16
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Location: North East Indiana
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If you run through salt and slop on the way south and you don't have the opportunity to get it washed, (especially undercarriage) . See if the c/g will allow you to put a sweep lawn sprinkler under your motor home. It does wonders of flushing and cleaning the underside. I have had to do it several times.
As far as running the m/H in storage, unless you just want to drive it for fun, I would leave it un-started until your are ready to camp again. You can check this yourself. Run the motor, shut off, then watch the water run out of your muffler and tail pipe. Since you are not up to full heat for a sufficient length of time. This water contains contaminates that are harmful to metal parts. If you are going to drive it 20-30 miles you are fine. Just a costly exercise, unless you just want to drive the m/h.

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Old 12-15-2009, 06:24 AM   #17
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I called Cummins to see what they thought. The tech I talked to said don't start it is what they recommend. He also said that if you want to and they understand that people want to check to make sure everything is working so there is no surprise when you are ready to go, to get it up to operating temp of 180. Idling won't do it so you will have to bump up the idle speed to do this. I think I read in our manual that one tap on the cruise control will bring it up to high idle speed on our MO.

He also suggested a biocide treatment for storage.
Mark & Nancy
2004 Winnebago Vectra 40KD
Shep dog, R.I.P. Kenzie dog Toad 2015 Jeep Wrangler Willys Wheeler
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Old 01-03-2010, 09:18 AM   #18
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Being in a cold spell right now, I ran mine yesterday along with the generator and the furnaces. Got real nice and toasty inside.
Anyway I ran the engine up on temp and cycled the transmission selector several times to hopefully circulate warm transmissin fluid through the Allison, my rig by the way is gas and not a diesel.

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