Good Sam Club Open Roads Forum: Class A Motorhomes: Diesel engine storage
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catkins

Western Washington

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Posted: 12/17/18 07:54am Link  |  Quote  |  Print  |  Notify Moderator

Have a Cummins Diesel MH. Now sitting parked for three months,two down one month to go. First time we have remained stationary for so long. Do I need to take the MH out and run it for a while or can I safely wait until we
Move in Mid-January ?? In AZ with low humidity and very mild temperatures. Thanks.

MountainAir05

New Mexico

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Posted: 12/17/18 08:16am Link  |  Quote  |  Print  |  Notify Moderator

Tractors sets for months along with boats. The rest of the people will tell you to drive it every month

lryrob9301

Mid-Atlantic

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Posted: 12/17/18 08:23am Link  |  Quote  |  Print  |  Notify Moderator

MountainAir05 wrote:

Tractors sets for months along with boats. The rest of the people will tell you to drive it every month


Correct, a diesel engine is not like a gasoline engine. It is fine sitting for long periods of time. Diesel engines in military vehicles sometimes sit for years without being started. Then a fresh battery is installed and the engine starts. Just make sure your fuel is treated with a biocide such as Biobor JF to kill unwanted microbe growth and let it sit. I have parked mine for up to seven months without starting and had no problems.


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rhagfo

Portland, OR

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Posted: 12/17/18 08:25am Link  |  Quote  |  Print  |  Notify Moderator

Just be sure the starting batteries are kept charged. Might add some anti-gel to the fuel tank if it is cold outside.


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ScottG

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Posted: 12/17/18 09:07am Link  |  Quote  |  Print  |  Notify Moderator

If you can, run it and get it moving.
With a diesel MH the biggest problem will be the air brakes freezing up on you with inactivity.


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Bill.Satellite

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Posted: 12/17/18 09:19am Link  |  Quote  |  Print  |  Notify Moderator

catkins wrote:

Have a Cummins Diesel MH. Now sitting parked for three months,two down one month to go. First time we have remained stationary for so long. Do I need to take the MH out and run it for a while or can I safely wait until we
Move in Mid-January ?? In AZ with low humidity and very mild temperatures. Thanks.


You have 2 choices. Doing nothing is likely the best choice as the engine will be just fine. The second choice is to start it AND drive it. You would need to drive far enough to bring everything up to operating temperatures. A nice 20 minute drive would be good. If you can't do that, do nothing.


What I post is my 2 cents and nothing more. Please don't read anything into my post that's not there. If you disagree, that's OK.
Can't we all just get along?

Blaster Man

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Posted: 12/17/18 09:27am Link  |  Quote  |  Print  |  Notify Moderator

Fill the tank and use a biocide. The biocide is critical, it will keep microbial growth (algae, bacteria and fungi) out of your fuel. Don't start the engine until you are ready to use it, monthly starts are not necessary.


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jplante4

Cape Cod

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Posted: 12/17/18 10:46am Link  |  Quote  |  Print  |  Notify Moderator

I drive the Sahara once a month until the salt hits the roads then it sits. Howes and/or Power Service fuel treatment in the last fillup in the fall.


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magicbus

Nantucket Island, MA

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Posted: 12/17/18 11:37am Link  |  Quote  |  Print  |  Notify Moderator

My DP sat for 4 months once and it was a bear to get the brakes freed up. Now I take my coach for a ride every 6 weeks just to lube everything up, run the generator and get the rust off the brakes. Besides, it's fun to drive so why not. And I too am a biocide believer.

Dave


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DutchmenSport

Indiana

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Posted: 12/17/18 12:28pm Link  |  Quote  |  Print  |  Notify Moderator

Won't hurt your tires a bit either if you take it out for a spin. Keeps them from dry rotting.

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