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#4608632 - 12/19/17 07:05 PM subaru 50/50 LL super coolant
lucerne06 Offline


Registered: 03/07/09
Posts: 445
Loc: northeast
what is the approx temp the pre mix coolant is supposed to protect to>??? minus 34 or minus 62...very hard to get the correct answer...

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#4608710 - 12/19/17 08:06 PM Re: subaru 50/50 LL super coolant [Re: lucerne06]
Rand Offline


Registered: 08/20/03
Posts: 12494
Loc: NE,Ohio
Appearance ......................... Blue
Density at 20C ................... 1.07 g/cm
Freezing Point ...................... -37C/-34F
Flash Point ........................... None
Boiling Point** .................... 129C/265F
Water Content ..................... 50%
pH-Value ............................. 7.7
**Using a 15 psi (103 kPa) pressure cap at sea level


however I have seen references to -62F as well. interesting

My thoughts:
Almost all 50/50 ethylene glycol based antifreeze is good to -34F

The -62f might be some sort of misprint based on a higher concentration of 60% or 65%
_________________________
2017 Jeep Cherokee Trailhawk V6

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#4608831 - 12/19/17 09:42 PM Re: subaru 50/50 LL super coolant [Re: lucerne06]
doitmyself Offline


Registered: 06/03/02
Posts: 6164
Loc: MI
I agree with Rand. Very confusing literature out there. I think they meant to say "up to" -62F, if doctored up with concentrate. I've seen a forum thread that states the concentrate is available if one wants to go below the -34F rating of the 50/50 mix.

Here's another link suggesting -34F at 50/50: http://suforester.com/products/696

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