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#4294684 - 01/06/17 06:29 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
KrisZ Offline


Registered: 12/23/06
Posts: 6129
Loc: Toronto, Canada
I disagree with those saying it would create additional wear. I think the opposite would be true. Fuel injected engines run pretty lean at idle and will not cause fuel dilution, maybe with the exception of GDI and that's a big maybe, as many here believe. The oil and coolant temps will vary much, much less and the engine components themselves will see very little heat cycles.
Would this outweigh the extra cost in fuel? I don't think so because the vehicle is sitting and doing nothing. However in commercial applications, where the equipment can be operated by different crews/drivers 24/7, with only downtime for maintenance and repair, the engines do last longer with fewer break downs.


Edited by KrisZ (01/06/17 06:30 AM)
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#4294688 - 01/06/17 06:37 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
madRiver Offline


Registered: 07/11/15
Posts: 2166
Loc: New England
I have with my Civic to keep an 2500 watt inverter running to power my boiler and fridge during power outage.

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#4294693 - 01/06/17 06:47 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
salcuta88 Offline


Registered: 02/03/15
Posts: 70
Loc: NC
but why?
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#4294695 - 01/06/17 06:51 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
bioburner Offline


Registered: 09/19/16
Posts: 775
Loc: Minnesota
I have talked to those in Alaska running diesels and yes because of -40 or worse. On the fly oil changes on the heavy equipment.
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#4294699 - 01/06/17 06:56 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
aquariuscsm Online   content


Registered: 12/30/06
Posts: 14699
Loc: South Texas,USA
Heck,keeping it running indefinitely=no startup wear! Engine will last forever laugh
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#4294719 - 01/06/17 07:16 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
Bluestream Offline


Registered: 09/13/03
Posts: 5618
Loc: Waterloo, ON
If you leave your engine always running you will save wear and tear on the ignition switch, and starter motor. They can be expensive if you ever have to replace them..
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#4294722 - 01/06/17 07:18 AM Re: Leaving the engine run All night long (all night) [Re: FordCapriDriver]
Danno Offline


Registered: 10/07/12
Posts: 1459
Loc: Northern Ontario, Canada
Originally Posted By: FordCapriDriver
trolling
No seriously i don't know if you are trolling or if you are serious... i would never leave an engine running all night unless it was -50 degrees outside and i didn't have a block heater on a car, its a massive waste of gas, it creates wear on the engine, it's unnecessary pollution etc etc etc.


No trolling in his post.

I have seen -40C - without windchill and I don't live in the coldest areas of Canada. At that temp using a block heater may not be enough as the block heater does warm the coolant, but the oil pan is not heated That means a 15W-40 in a diesel will be like molasses. Good luck with starting at that point.

If you run a block heater, oil pan heater, and heated battery blanket, you will probably start, but with heavier duty trucks, you start running out of electrical power on a normal 15 AMP circuit to power all those accessories.

I was at a natural gas trucking conference a couple of years ago. Emterra, a refuse company in Winnipeg Manitoba (known as Winterpeg" in Canada) had launched a new fleet of NG refuse trucks. They could not get enough heat into the engines by plugging them in and had to resort to insulated engine boxes and run 20 AMP service.
They were experiencing up to 50% downtime before they took the extreme measures.

So yes, leaving your truck running to avoid a no start is a reality where it gets really cold.

Edit: Just looked up Emterra, they won't be getting the business after 2017.

http://www.cbc.ca/news/canada/manitoba/winnipeg-waste-contracts-1.3783784


Edited by Danno (01/06/17 07:27 AM)

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#4294723 - 01/06/17 07:18 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
Bud Offline


Registered: 06/04/02
Posts: 831
Loc: Texas
Simple answer, no.
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#4294731 - 01/06/17 07:31 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
ShotGun429 Offline


Registered: 12/09/04
Posts: 324
Loc: Dayton,Ohio
My 06 Crown Vic Police Car i bought used last year, must have idled alot during its service life, it has almost 7000 idle hours on it plus 105000 miles with no ill effects, but i dont let idle much any more.

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#4294735 - 01/06/17 07:41 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
TiredTrucker Online   content


Registered: 01/04/08
Posts: 2829
Loc: Central Iowa
And something that never seems to be mentioned, a fuel fired coolant heater. Yes, they come in both diesel and gasoline varieties. Not cheap, but not terribly expensive either. Webasto and Espar are the two major brands and have been around for a long time. Can be set on a timer and when they start up, they can have an engine, even a larger heavy truck engine, up to 140F in less than an hour even at -50F outside temp after the engine has been shut off for 24 hrs. Uses less than 1/8th of a gallon of fuel from the vehicle tank to do it. And these thing can be plumbed in creative ways to also warm tank fuel (diesel) and the oil pan. So the old argument that "there is no plug in so there is no way to keep the engine warm with a block heater" doesn't fly anymore. For those that actually deal with cold issues frequently and not just academically, we have figured out how to get the job done.

We never seemed to have such a terrible time in the interior of Alaska when I live there for 10 years. Folks actually used the gray matter between their ears that they were given and some common sense which is sorely lacking nowadays.

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#4294738 - 01/06/17 07:49 AM Re: Leaving the engine run All night long (all night) [Re: madRiver]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 1275
Loc: New England
Originally Posted By: madRiver
I have with my Civic to keep an 2500 watt inverter running to power my boiler and fridge during power outage.


2500W is a nearly 200A load on your alternator...I'm sure it's fine as a peak load.
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#4294759 - 01/06/17 08:18 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
Vikas Offline


Registered: 07/22/05
Posts: 10822
Loc: NorthEast
Do the truckers leave the engine running when they sleep in their cab on the side of the road?

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#4294768 - 01/06/17 08:31 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
RedOakRanch Offline


Registered: 11/10/13
Posts: 583
Loc: Central Coast California
There was a TV show where some guys drove Porsches across Alaska in winter and they did let them idle all night. If I remember right they didn't use use as much fuel as expected. I know a few people who drove home drunk and left there car running in the yard overnight. Still running with the radio on and the door open the next day.
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#4294779 - 01/06/17 08:47 AM Re: Leaving the engine run All night long (all night) [Re: RedOakRanch]
AirgunSavant Offline


Registered: 07/22/15
Posts: 2299
Loc: MD
lol- I've seen that!

Originally Posted By: RedOakRanch
There was a TV show where some guys drove Porsches across Alaska in winter and they did let them idle all night. If I remember right they didn't use use as much fuel as expected. I know a few people who drove home drunk and left there car running in the yard overnight. Still running with the radio on and the door open the next day.

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#4294789 - 01/06/17 08:58 AM Re: Leaving the engine run All night long (all night) [Re: veryHeavy]
jacky Offline


Registered: 03/15/14
Posts: 402
Loc: wv usa
I have done work as a security guard and had to set in my truck (toyota tacoma) for 8 to 12 hours per night and left the motor running for 8 hours or so to run the heater.
at the time temps were below freezing
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