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Old 10-21-2013, 03:35 PM   #1
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Do you start and run your DP or let it sleep?

In reading several threads about wintering and covering... I noticed that some people say they occaisionally start and run their rig over the winter... I've also read in here that it's better to let a diesel hibernate until the spring, because they don't like the short start up spurts...

I live in the sometimes very cold and very snowy winters of upstate NY. This is my first winter with a DP and am wondering what do you do?

Also, I have a built in engine block heater and have the rig plugged in full time to 50 amps. Once the cold weather sets in, if I don't intend to go anywhere until spring, should I leave the engine heater on to keep the oil warm? or is that just wasting money?
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Old 10-21-2013, 04:06 PM   #2
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I asked the same thing and another user posted a link to Cummins, they recommend if you can't drive it to let everything come up to temp then let it sit and don't start it.
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Old 10-21-2013, 04:20 PM   #3
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If you're not going to start it, don't bother trying to keep the oil warm.

And (IMHO) unless you're actually going to drive it long enough to really warm it up, just let it sit. We're full-timers, but I've had the coach sit for 5 months or so without starting it, when we're parked for the season.
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Old 10-21-2013, 04:26 PM   #4
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What I got from Cummins when I asked them about this:
Quote:
From the perspective of the Cummins engine it is good to do either one of two things:

1) Start the engine and drive it or 2) do not start the engine.

Our engines do not gain anything by idling. In fact a diesel engine on low idle will not ever get up to operating temperatures which is bad for the engine and can cause an increase in soot production.

The other side of the story is that starting the engine and letting it idle is probably good for other things like air brakes, heating and cooling, etc. So probably the best answer to try to get both worlds to meet is to occasionally take the unit out for a drive during times of prolonged storage."
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Old 10-21-2013, 04:26 PM   #5
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I park mine at a storage facility for the winter months. About every other month I'll start and drive it out and about for about 20 minutes. This gets things warmed up, the brake rotors 'de-rusted' and allows the tires to get rid of flat spots. I only do it when roads are dry and not loaded with salt.
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Old 10-21-2013, 04:41 PM   #6
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When we lived in the cold I would start it and run it. I would also fire up the generator and even get the heat going and run some appliances. But I guess each their own.
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Old 10-21-2013, 05:37 PM   #7
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Quote:
Originally Posted by 92TNTRacing View Post
I asked the same thing and another user posted a link to Cummins, they recommend if you can't drive it to let everything come up to temp then let it sit and don't start it.
Good advice. A diesel will not warm up just idling, you have to drive it. So either take it out and drive it hard, or leave it alone.
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Old 10-21-2013, 05:58 PM   #8
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Hi StevieG,
Let it sleep. That is what I do.
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Old 10-21-2013, 07:51 PM   #9
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The problem with starting and just letting it idle the temp does not come up to operating temp and get the moisture out of the oil and engine, if it is done several times during the winter it starts to warm up and when it cools down it pulls more moisture into the engine each time and will contaminate the oil.

I winterize, add mouse killer, have the tires on planks and cover the tires, and remove the batteries and store them in the garage and will charge them every month to make sure the charge is up to keep them from freezing winters here can get to -30f
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Old 10-21-2013, 08:05 PM   #10
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Another point on not idling is the Diesel Particulate Filters do not like an idling engine .
StevieG if you have an engine with a DPF or are using DEF long idling periods are
discouraged . Driving the RV to get everything up to temp is good ,
I let mine sit untill needed
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Old 10-21-2013, 08:15 PM   #11
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Stabilize the fuel, park it and let it sit. It seems unanimous on this thread.
Mine sits for 5 months in the winter without any issues.
Do keep the batteries charged. Don't keep the block
heater running till a few hours before you are ready
to take her out in the spring.
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Old 10-23-2013, 10:07 AM   #12
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Thanks everyone for your replies. Going to let my "kitty" hibernate and leave the engine block heater off...
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Old 10-23-2013, 12:55 PM   #13
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Quote:
Originally Posted by macadnphyl View Post
Stabilize the fuel, park it and let it sit. It seems unanimous on this thread.
Mine sits for 5 months in the winter without any issues.
Do keep the batteries charged. Don't keep the block
heater running till a few hours before you are ready
to take her out in the spring.
If you are going to start the diesel in cold weather and drive it. At what outside temp do use the block heater prior to start?
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Old 10-23-2013, 01:23 PM   #14
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Quote:
Originally Posted by macadnphyl View Post
Stabilize the fuel, park it and let it sit. It seems unanimous on this thread.
Mine sits for 5 months in the winter without any issues.
Do keep the batteries charged. Don't keep the block
heater running till a few hours before you are ready
to take her out in the spring.
Not unanimous. I believe it should be started on a regular basis. Tiffin on their tech tips website recommends you start the engine and the generator every three weeks and run them for at least twenty minutes
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