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#4616684 - 12/28/17 12:59 PM Antifreeze how low do you go
littleant Offline


Registered: 10/10/17
Posts: 294
Loc: Vermont
Hi. How low do you have your antifreeze and do you allow for wind chill. Last night the temperature up here in Northeastern Vermont was -25 with a wind chill of -38. Do you count in driving on an interstate at 60. I have my coolant at -45. I fully warm up engine before driving. Thanks
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#4616688 - 12/28/17 01:02 PM Re: Antifreeze how low do you go [Re: littleant]
901Memphis Offline


Registered: 08/14/10
Posts: 12876
Loc: Northern Kentucky
Cars aren't affected by wind chill, only real temperature.
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#4616698 - 12/28/17 01:11 PM Re: Antifreeze how low do you go [Re: littleant]
Jimzz Offline


Registered: 10/03/14
Posts: 1107
Loc: NoVA
Yep, wind chill is about you. Temperature is what your coolant/car cares about.
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#4616703 - 12/28/17 01:16 PM Re: Antifreeze how low do you go [Re: littleant]
901Memphis Offline


Registered: 08/14/10
Posts: 12876
Loc: Northern Kentucky
I aimed for 50% with my G05 which is good until -34F. It doesn't get below negative single digits here rarely. Supposed to be that cold next week.
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#4616719 - 12/28/17 01:30 PM Re: Antifreeze how low do you go [Re: littleant]
69GTX Offline


Registered: 09/23/15
Posts: 3742
Loc: Connecticut
Wind chill removes heat from the engine bay at a faster rate than if there were no wind. Then again, when driving at 60 mph you have more wind across your radiator too. As long as your coolant temp reaches set point, you're probably fine.
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#4616748 - 12/28/17 01:53 PM Re: Antifreeze how low do you go [Re: littleant]
mk378 Offline


Registered: 09/27/15
Posts: 1332
Loc: USA
Wind chill does not affect whether or not a liquid will eventually freeze. If the freezing point is above the real temperature, adding wind will make it freeze faster, but ultimately whether it is going to freeze or not is decided by the real temperature.


Edited by mk378 (12/28/17 01:57 PM)

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#4616794 - 12/28/17 02:28 PM Re: Antifreeze how low do you go [Re: littleant]
ThankYouma Offline


Registered: 12/14/17
Posts: 59
Loc: New York City
50-50 works fine, as far as I know.

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#4616815 - 12/28/17 02:48 PM Re: Antifreeze how low do you go [Re: littleant]
Nitronoise Offline


Registered: 03/24/10
Posts: 476
Loc: Chicago Suburbs
Great Lakes Lubricants in Franklin Park IL has an anti freeze that works to -64 F

I use it in my sons Santa Fe up at college in MN

tonite and tomorrow -20 + for lows this weekend

they do web sales
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#4616835 - 12/28/17 03:04 PM Re: Antifreeze how low do you go [Re: littleant]
andyd Offline


Registered: 09/25/04
Posts: 6884
Loc: Marshfield , MA
Never seen temps less than -25F 50/50 is how I've been mixing it forever.
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#4616849 - 12/28/17 03:15 PM Re: Antifreeze how low do you go [Re: littleant]
Rolla07 Offline


Registered: 11/05/11
Posts: 4671
Loc: MTL, CANADA
55/45 up here is the mix ratio.
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#4616853 - 12/28/17 03:18 PM Re: Antifreeze how low do you go [Re: littleant]
SHOZ Online   shocked


Registered: 06/28/03
Posts: 5603
Loc: Illinois
When I do a flush and refill I use a gallon of 70/30 as there will still be some water in the block. Then top off with 50/50 and it comes out around 60/40..... more or less.
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#4616895 - 12/28/17 04:09 PM Re: Antifreeze how low do you go [Re: littleant]
dlundblad Online   happy


Registered: 09/30/13
Posts: 9673
Loc: Indiana
60/40 for me.

A 10 degree margin for error during our polar vortex a few years ago wasn't worth it for me.
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#4617012 - 12/28/17 06:23 PM Re: Antifreeze how low do you go [Re: 69GTX]
ammolab Offline


Registered: 01/16/06
Posts: 955
Loc: Ruidoso, NM USA
Originally Posted By: 69GTX
Wind chill removes heat from the engine bay at a faster rate than if there were no wind. Then again, when driving at 60 mph you have more wind across your radiator too. As long as your coolant temp reaches set point, you're probably fine.


Yes, but wind chill is about evaporation of moisture on exposed skin making it "feel colder". Wind chill or ram air over your engine and radiator will never lower the temp below ambient.

Why the news often ONLY shows "wind chill" temps makes me mad. I want actual temp to plan for pipes, plants and of course VISCOSITY! They just like the spectacular numbers I guess.
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#4617020 - 12/28/17 06:33 PM Re: Antifreeze how low do you go [Re: ammolab]
Kira Offline


Registered: 08/19/10
Posts: 4900
Loc: Champlain/Hudson Valley
I worked with an old fashioned New Yorker (City, not State) and only he could say, "They can take that wind chill and shove it up their....".
I agree.

In the Winter of '80-'81 I lived where we had 3 consecutive nights of -38 degrees Fahrenheit.
That's below the freezing point of 50/50 mixes of the day.
My car had no problem. I was driving a........Corvair!

The "degree Fahrenheit" symbol came through as a jumble of characters so I spelled it out.

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#4617048 - 12/28/17 07:07 PM Re: Antifreeze how low do you go [Re: littleant]
littleant Offline


Registered: 10/10/17
Posts: 294
Loc: Vermont
Thanks for the replies guys. Good information.
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