SE Michigan Winter Plug In Question - Dodge Cummins Diesel Forum
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post #1 of 14 (permalink) Old 01-16-2020, 05:15 PM Thread Starter
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SE Michigan Winter Plug In Question

Hi Everyone!

I just purchased a my first truck which is a '19 3500 Laramie and have a question on the Cummins Plugin. I live in SE Michigan and wanted to know when I should be plugging the truck in to heat the motor.

Thanks in advance for your advise and recommendations.

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post #2 of 14 (permalink) Old 01-16-2020, 05:47 PM
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i keep mine plugged in over night if it gets below freezing. you'll get a ton of differing opinions
on this topic.

'19 2500 t'man
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post #3 of 14 (permalink) Old 01-16-2020, 07:06 PM Thread Starter
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Thank you for the response.
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post #4 of 14 (permalink) Old 01-16-2020, 09:54 PM
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Per the Cummins diesel supplement:
"Block Heater Usage
For ambient temperatures below 0F (-18C), engine block heater usage is recommended.
For ambient temperatures below 20F (-29C), engine block heater usage is required."

If you plug in, the water temps inside the engine will not drop below 70F, and you oil will be warm as well. Which means when you start up, it's like starting a warm engine, and you get cabin heat faster. Nicer for your engine, but plugging in and unplugging a frozen and maybe snow covered electrical cord takes common sense. Use an outdoor rated extension cord and plug in to a GFI plug, and unplug from the dry inside source first, not the truck first.

Just also note, the 2019's have a built in 3 phase ceramic cabin heater, that will start to give you cabin heat in 2 minutes. Within 5 minutes, you are comfy.
So far I have not plugged in my truck other than to test the system to verify functionality. Even below the 0F.

And the plug is hidden under the front license plate area.
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post #5 of 14 (permalink) Old 01-16-2020, 10:45 PM Thread Starter
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This is great and thank you for the guidance.
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post #6 of 14 (permalink) Old 01-19-2020, 08:51 PM
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In Mid Michigan, running a 2500 C, I get 114 F in the morning in my 45 F garage, and use a timer to start the juice around 3:00\ am turning off at 10:00.

Works just fine..

Also, just BEFORE plugging in, reach up and raise your drivers side windshield wiper in the UP position. Then plug your engine heater in.

This will serve as a reminders when youre ready to head out, and prevent you from yanking the plug off the wall, or the heater plug...... Safe practice.

Enjoy,

Drift
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post #7 of 14 (permalink) Old 01-19-2020, 09:01 PM
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Supposedly, 2-3 hours is plenty. After that there may not be any additional heating benefit.
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Maybe if we start telling people that the brain is an app, they will start using it?

'14 1500 V6, '17 3500 C&C, plus a '19 3500 6.4 in the household.
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post #8 of 14 (permalink) Old 01-20-2020, 04:56 AM
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Read and digest the Owner's Manual. The Diesel Supplement too. Then read it again.

19 3500 Laramie LongHorn SRW Crew; HO CTD
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post #9 of 14 (permalink) Old 01-20-2020, 04:40 PM
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If you had an electric car, you'd be plugging it in every night, all year! Lol.

I plug mine in at 0F and below. My outdoor plug is old and only has two prongs (no ground). I use a cheater adapter. I always unplug it at the truck and toss the cord aside to be found again the next night. I also leave it plugged in all night long - I don't have a timer so its just more convenient. I don't care about electrical cost, it isn't much.

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post #10 of 14 (permalink) Old 01-20-2020, 05:35 PM
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Quote:
Originally Posted by dgiturbo View Post
Per the Cummins diesel supplement:
"Block Heater Usage
For ambient temperatures below 0F (-18C), engine block heater usage is recommended.
For ambient temperatures below –20F (-29C), engine block heater usage is required."

If you plug in, the water temps inside the engine will not drop below 70F, and you oil will be warm as well.
Your new trucks have an oil htr as well? Engine temps wont drop below 70f? What magical thing is happening there?

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post #11 of 14 (permalink) Old 01-20-2020, 06:06 PM
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Quote:
Originally Posted by N of 60 View Post
Your new trucks have oil a htr as well? Engine temps wont drop below 70f? What magical thing is happening there?
In Illinois...in the Yukon ymmv...
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post #12 of 14 (permalink) Old 01-20-2020, 07:01 PM
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Quote:
Originally Posted by N of 60 View Post
Your new trucks have oil a htr as well? Engine temps wont drop below 70f? What magical thing is happening there?
A millennial writes the copy in his mom's basement, and nobody fact checks his writing.
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Maybe if we start telling people that the brain is an app, they will start using it?

'14 1500 V6, '17 3500 C&C, plus a '19 3500 6.4 in the household.
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