Recent Topics
Whatever happened to Meyer's invention?
by OneEyeJack
15 minutes 18 seconds ago
window tinting
by crestwood
16 minutes 59 seconds ago
Quart low after 3100 miles 4.6 ltr modular
by A1O
32 minutes 3 seconds ago
Canadian Tire - Pennzoil Platinum 50% off
by Uregina09
33 minutes 47 seconds ago
Remember This Filter C&P?
by BlueOvalFitter
51 minutes 51 seconds ago
New X Files..
by Warstud
Today at 06:00 PM
Oil change on 2001 civic with some engine noises
by llmercll
Today at 05:17 PM
Valvoline Cerulean
by Ramblejam
Today at 05:14 PM
Highlander timing belt
by Carguy21
Today at 04:53 PM
Saw my old Saturn Wagon in the wild!
by eljefino
Today at 04:23 PM
Went with Primewells
by Eric Smith
Today at 04:06 PM
121R Battery Group Size Alternatives ?
by neilwestlawn
Today at 03:52 PM
Newest Members
rsritchey, Ball9320, 06Corolla, AyPapii, JakeTheYankee
56834 Registered Users
Who's Online
110 registered (afoulk, AZjeff, akela, 2015_PSD, 69GTX, 2009Edge, 10 invisible), 1442 Guests and 204 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
56834 Members
66 Forums
244327 Topics
3978128 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#3237750 - 01/04/14 10:02 PM Antifreeze question
Plumber Offline


Registered: 10/23/13
Posts: 331
Loc: USA
Prestone antifreeze tester says the liquid is rated to -15 degrees. Is this when it actually freezes solid, or gets slushy?

Top
#3237760 - 01/04/14 10:11 PM Re: Antifreeze question [Re: Plumber]
Donald Offline


Registered: 03/21/04
Posts: 16042
Loc: Upstate NY
I would put a little in a Dixie and see how it does at 0F which is what your freezer should be.
_________________________
2015 Subaru Forester 2.5 engine/CVT PP & M1
2001 Jeep Grand Cherokee Laredo 4.0 - PP & M1
1999 Dodge Ram 2500 w/Cummins - Rotella T6 & M1


Top
#3237854 - 01/05/14 12:13 AM Re: Antifreeze question [Re: Plumber]
Kuato Online   confused


Registered: 10/23/05
Posts: 4467
Loc: 327km N of the other border
Considering the precision of those testers, err on the safe side and figure it will eventually freeze at -15, with the normal transition from liquid to slush to soft ice to hard frozen.

If you have the chance and location, maybe a radiator drain and refill with 100% coolant is in order. (Adjusted for system capacity)
_________________________
Amsoil user.

13 F150, 5.0, 69000km (43k mi)
04 Wrangler, 2.4, 312000km (194k mi)




Top
#3237880 - 01/05/14 12:51 AM Re: Antifreeze question [Re: Kuato]
crazyoildude Offline


Registered: 07/23/08
Posts: 7792
Loc: New Jersey
100% coolant? Never a good idea Never! 50/50

Top
#3237907 - 01/05/14 03:31 AM Re: Antifreeze question [Re: crazyoildude]
KitaCam Offline


Registered: 11/16/12
Posts: 2021
Loc: SunnySouthFlorida
Originally Posted By: crazyoildude
100% coolant? Never a good idea Never! 50/50


Yes! 50-50 is good to -34F (I think that's about -37C)
_________________________
Kitacam is an 05 Camry LE/I4/MT; 6/15 @ 132,500....Pennzoil Plat-Plus 5w-30 for the hot summer...with Toyo filter

Top
#3237911 - 01/05/14 03:49 AM Re: Antifreeze question [Re: crazyoildude]
shDK Offline


Registered: 04/03/13
Posts: 627
Loc: Denmark
Originally Posted By: crazyoildude
100% coolant? Never a good idea Never! 50/50


perhaps the guy meant he should drain a bit of the coolant in the system. maybe a litre, and then refill with concentrated coolant. To adjust the freezing point. i think that what what he meant.

Top
#3237964 - 01/05/14 07:25 AM Re: Antifreeze question [Re: Plumber]
NHGUY Offline


Registered: 10/09/11
Posts: 4429
Loc: USA
100% will freeze.Water is the carrier of thermal conductivity.

Top
#3238017 - 01/05/14 08:41 AM Re: Antifreeze question [Re: Plumber]
JHZR2 Offline



Registered: 12/14/02
Posts: 37280
Loc: New Jersey
Slush and solid is just a matter of time. The differentiation is thermal mass (how much heat the engine block retains.

You could make a practical assessment of how often and for how long is the temperature actually -15? Maybe not long or never.

Still, to me that means your as is a little light, as it still gets quite cold in IL. I'd just siphon a small amount of your current AF and replace it with neat AF and call it a day. You can do a calculation to determine how much you need, and you definitely don't want to get too much glycol in there, but you should add some.

Top
#3238064 - 01/05/14 09:35 AM Re: Antifreeze question [Re: Plumber]
Plumber Offline


Registered: 10/23/13
Posts: 331
Loc: USA
Severe cold is hitting tonight. I plan on warming up the 54, then dilute some more antifreeze.

A month ago I figured -15 would be fine! Ugh....

Top
#3238154 - 01/05/14 11:15 AM Re: Antifreeze question [Re: Plumber]
doitmyself Offline


Registered: 06/03/02
Posts: 5185
Loc: MI
My Prestone antifreeze tester pictured below turned out to be incorrect.

Try to find a shop that has a refractometer to test your juice. It takes less than 5 minutes time.
_________________________
"There are things you do that put food on the table, and there are things you do that feed your soul." I am blessed to have them be the same things.

Top
#3238247 - 01/05/14 12:27 PM Re: Antifreeze question [Re: Plumber]
Plumber Offline


Registered: 10/23/13
Posts: 331
Loc: USA
I just got back from the yard. The beater 54 took 5 cranks to start, I let it run for 30 minutes, added about a gallon of 60/40 and let it run another 10 minutes. My biggest gripe would be a cat or critter making a home on the warm engine!

Running a 5w-30 National brand oil, and a blue bottle of STP...sounded great upon start up! Not bad for a 230 flathead from 1954 in bad temps!


Edited by Plumber (01/05/14 12:33 PM)

Top
#3238495 - 01/05/14 03:51 PM Re: Antifreeze question [Re: shDK]
Kuato Online   confused


Registered: 10/23/05
Posts: 4467
Loc: 327km N of the other border
Originally Posted By: shDK
Originally Posted By: crazyoildude
100% coolant? Never a good idea Never! 50/50


perhaps the guy meant he should drain a bit of the coolant in the system. maybe a litre, and then refill with concentrated coolant. To adjust the freezing point. i think that what what he meant.



Precisely. I wish people would read for content.

I said, "radiator drain and refill...adjusted for capacity". We don't need to do the math for OP but an adjustment from the current protection to a 50/50 situation would be a good idea.

And to be fair I should have said to adjust to 50/50 in the first post.


Edited by Kuato (01/05/14 04:05 PM)
_________________________
Amsoil user.

13 F150, 5.0, 69000km (43k mi)
04 Wrangler, 2.4, 312000km (194k mi)




Top
#3238757 - 01/05/14 08:36 PM Re: Antifreeze question [Re: doitmyself]
Jiblet Offline


Registered: 09/24/09
Posts: 105
Loc: Massachusetts
Originally Posted By: doitmyself
My Prestone antifreeze tester pictured below turned out to be incorrect.

Try to find a shop that has a refractometer to test your juice. It takes less than 5 minutes time.


A decent coolant refractometer can be bought for around $25.

Those floating ball things are worse than useless.

Top
#3238893 - 01/05/14 11:00 PM Re: Antifreeze question [Re: Jiblet]
crazyoildude Offline


Registered: 07/23/08
Posts: 7792
Loc: New Jersey
we use those exact type testers and have no issues with them
_________________________
My Personal Choice Of Engine Oil Is Usually PYB And PHM For My Dino Choices, As For Synthetic I Like The QSUD..
Oil Filters Anything Wix Or Fram Ultra.

Top
#3239055 - 01/06/14 07:30 AM Re: Antifreeze question [Re: Kuato]
Wilhelm_D Offline


Registered: 01/28/09
Posts: 818
Loc: Tacoma, WA
Originally Posted By: Kuato
If you have the chance and location, maybe a radiator drain and refill with 100% coolant is in order. (Adjusted for system capacity)


100% ethylene glycol would result in protection to about 10 F.

That's the freezing point of pure ethylene glycol, but when you mix ethylene glyclol with water, the mixture does not readily crystallize and the freezing point of the mixture is depressed. So a mixture with water is better than pure antifreeze.

The other problem pure ethylene glycol presents is that it does not transfer heat as well as water. For a cooling system with pure ethylene glycol the circulated volume must be increased compared to a system with clean water alone.

Ethylene Glycol Heat-Transfer Fluid

The optimum mix for antifreeze purposes is about 2/3 ethylene glycol to 1/3 water.

Top
Page 1 of 2 1 2 >