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Question - what does 0C (32F) mean to automobiles #4634215
01/14/18 05:41 AM
01/14/18 05:41 AM
Joined: Dec 2002
Posts: 40,860
'Stralia
Shannow Offline OP
Shannow  Offline OP
Joined: Dec 2002
Posts: 40,860
'Stralia
Yep, that's the freezing point of water, which is now an obsolete coolant, not having been specified for decades that I'm aware of.

But what line in the sand does 0C actually define for automobiles ?

"below freezing" is mentioned as a point in which "things" change in their behaviour, but what's the change ?

Re: Question - what does 0C (32F) mean to automobiles [Re: Shannow] #4634216
01/14/18 05:47 AM
01/14/18 05:47 AM
Joined: Feb 2013
Posts: 10,686
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline
Joined: Feb 2013
Posts: 10,686
Phoenix, AZ
It means the poor thing is out there shivering, hurry up and give it a blanket!


2015 Hyundai Sonata 2.4L 84k Mobil 1 AFE 0w30 & OEM
2000 Toyota Camry 2.2L 230k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: Question - what does 0C (32F) mean to automobiles [Re: Shannow] #4634218
01/14/18 05:53 AM
01/14/18 05:53 AM
Joined: Dec 2009
Posts: 25,355
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline
Joined: Dec 2009
Posts: 25,355
Regina, Saskatchewan, Canada
Not much, in my view. I run washer fluid year round that won't freeze until -45 C, and I certainly don't use water as a coolant, as you point out. The only change I ever notice when approaching the freezing point is frost on the glass on occasion, which wouldn't be there otherwise. The humidity is often low enough here, too for the frost to not show up anyhow.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Question - what does 0C (32F) mean to automobiles [Re: Shannow] #4634225
01/14/18 06:47 AM
01/14/18 06:47 AM
Joined: Dec 2017
Posts: 59
New York City
ThankYouma Offline
ThankYouma  Offline
Joined: Dec 2017
Posts: 59
New York City
It means that there is more resistance to flow of fluids such as oil versus when it is warm or hot.. Also, that you get to know how well your heat works, if it works at all.

Your car generally doesn't care if it's in Antarctica or if it's in the tropics or hottest regions of the planet. As long as it has gas or diesel and proper fluids it should be happy. General physics apply.

Re: Question - what does 0C (32F) mean to automobiles [Re: Shannow] #4634226
01/14/18 06:51 AM
01/14/18 06:51 AM
Joined: Mar 2010
Posts: 1,325
Michigan
BobsArmory Offline
BobsArmory  Offline
Joined: Mar 2010
Posts: 1,325
Michigan
It means that if you wash your car on the way home from work at the car wash you might not be able to open your doors in the morning.


Keeping the forces of evil at bay
2016 Chevy Malibu LT 1.5 Liter Turbo
2017 Chevy Equinox LT 2.4 Liter
Re: Question - what does 0C (32F) mean to automobiles [Re: Shannow] #4634236
01/14/18 07:40 AM
01/14/18 07:40 AM
Joined: Jul 2015
Posts: 4,624
Down Under
SR5 Offline
SR5  Offline
Joined: Jul 2015
Posts: 4,624
Down Under
It was +42C (108F) here yesterday, it means I can touch the steering wheel without wincing in pain, and a vinyl seat isn't going to melt flesh from my bare legs (also cold enough to wear long pants).


Penrite Vantage 10W40 SN & A3/B4 + Wesfil-Cooper Z154
Re: Question - what does 0C (32F) mean to automobiles [Re: Shannow] #4634239
01/14/18 07:47 AM
01/14/18 07:47 AM
Joined: Sep 2005
Posts: 5,664
MIchigan
Warstud Offline
Warstud  Offline
Joined: Sep 2005
Posts: 5,664
MIchigan
I think it's used as a reference point that people can relate to.

Re: Question - what does 0C (32F) mean to automobiles [Re: Shannow] #4634263
01/14/18 08:31 AM
01/14/18 08:31 AM
Joined: Oct 2002
Posts: 36,291
Great Lakes
Quattro Pete Offline
Quattro Pete  Offline
Joined: Oct 2002
Posts: 36,291
Great Lakes
Originally Posted By: Shannow
But what line in the sand does 0C actually define for automobiles ?

Slippery/icy driving conditions?


'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (FF)
Re: Question - what does 0C (32F) mean to automobiles [Re: Shannow] #4634289
01/14/18 09:07 AM
01/14/18 09:07 AM
Joined: Dec 2006
Posts: 7,641
Toronto, Canada
KrisZ Online happy
KrisZ  Online Happy
Joined: Dec 2006
Posts: 7,641
Toronto, Canada
For people that live in places that the temps hardly ever get to the freezing point, it means they have to warm up their cars for 30 minutes, to get the "fluids flowing" and take extra 30 minute drive from work to burn off water and fuel dilution.

For people that live up north it means nothing, maybe keep an ice scraper in the car just in case we have freezing rain.


2015 Dodge Grand Caravan-27k miles.
2006 Mazda 3-163k miles
Re: Question - what does 0C (32F) mean to automobiles [Re: KrisZ] #4634326
01/14/18 09:46 AM
01/14/18 09:46 AM
Joined: Aug 2010
Posts: 5,656
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,656
Champlain/Hudson Valley
Any plastic or rubber part will be stiffer....to the point of "crossing a line"?....it would vary.
A useable example of a "line" could be the one presented by lubricants which stiffen and let bad U-joints, suspension bushings and sway bar links creak.
Kinda useful really.

Re: Question - what does 0C (32F) mean to automobiles [Re: Shannow] #4634328
01/14/18 09:48 AM
01/14/18 09:48 AM
Joined: Dec 2014
Posts: 1,671
'murica
Ethan1 Offline
Ethan1  Offline
Joined: Dec 2014
Posts: 1,671
'murica
Nothing. 0F is when cars start to moan and groan, cranking times are longer, power steering takes a moment to get going, etc.

Re: Question - what does 0C (32F) mean to automobiles [Re: Shannow] #4634400
01/14/18 10:34 AM
01/14/18 10:34 AM
Joined: Nov 2016
Posts: 1,278
WI
HoosierJeeper Offline
HoosierJeeper  Offline
Joined: Nov 2016
Posts: 1,278
WI
x2. 32 degrees means it's car wash weather!


15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)
Re: Question - what does 0C (32F) mean to automobiles [Re: Ethan1] #4634407
01/14/18 10:43 AM
01/14/18 10:43 AM
Joined: Sep 2009
Posts: 16,008
OH
fdcg27 Offline
fdcg27  Offline
Joined: Sep 2009
Posts: 16,008
OH
Originally Posted By: Ethan1
Nothing. 0F is when cars start to moan and groan, cranking times are longer, power steering takes a moment to get going, etc.


Yep.
0C is fairly comfortable while 0F is starting to get really cold.


17 Forester 12K MSS 0W-20
12 Accord LX 92K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
Re: Question - what does 0C (32F) mean to automobiles [Re: Warstud] #4634408
01/14/18 10:46 AM
01/14/18 10:46 AM
Joined: Jun 2003
Posts: 10,429
Illinois
javacontour Online content
javacontour  Online Content
Joined: Jun 2003
Posts: 10,429
Illinois
Bingo!

It's a temperature chosen to measure attributes and behaviors of materials and systems used by the vehicle. The changes in behavior are occurring as temperatures drop (or rise).

In the case of oil, IIRC, multi viscosity oils are measured at 0c and 100c.

Originally Posted By: Warstud
I think it's used as a reference point that people can relate to.


network down, IP packets delivered via UPS -BOFH
Re: Question - what does 0C (32F) mean to automobiles [Re: Ethan1] #4634420
01/14/18 11:00 AM
01/14/18 11:00 AM
Joined: Dec 2016
Posts: 6,226
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,226
Waco, TX
It means Nothing.

10*F-15*F is when I notice changes,

cranking is a little slower, High idle stays much longer, etc.

32*F is any other day for me.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
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