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#4684632 - 03/04/18 09:25 PM Testing premixed coolant with tester often shows..
TurboTravis Offline


Registered: 07/26/07
Posts: 207
Loc: NY
That it is mixed stronger than 50/50 (which should test -34F), anyone else ever seen this? I have some premixed in the garage now, I will test it here in a bit and post the exact number that I get.

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#4684639 - 03/04/18 09:32 PM Re: Testing premixed coolant with tester often shows.. [Re: TurboTravis]
Chris142 Offline


Registered: 06/05/03
Posts: 16825
Loc: Deplorable in apple valley, ca
The long life coolants show -70F on my refractometer when mixed 50/50.
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02 Wrangler durablend 10w40
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#4684655 - 03/04/18 09:45 PM Re: Testing premixed coolant with tester often shows.. [Re: TurboTravis]
Warstud Offline


Registered: 09/02/05
Posts: 5397
Loc: MIchigan
Are you sure your using the right tester? Theres certain testers for certain antifreeze.

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#4684736 - 03/05/18 12:03 AM Re: Testing premixed coolant with tester often shows.. [Re: Warstud]
TurboTravis Offline


Registered: 07/26/07
Posts: 207
Loc: NY
Yes.

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#4684737 - 03/05/18 12:04 AM Re: Testing premixed coolant with tester often shows.. [Re: TurboTravis]
TurboTravis Offline


Registered: 07/26/07
Posts: 207
Loc: NY
Valvoline Asian 50/50 premix shows -45F on my tester.

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#4684942 - 03/05/18 08:59 AM Re: Testing premixed coolant with tester often shows.. [Re: TurboTravis]
MRtv Offline


Registered: 01/04/16
Posts: 207
Loc: Ada county Idaho
I have a 30 year old Prestone tester. I tested my G05 coolant mixed at somewhere near 50/50 in my F150. Tested at -34. Tested my Pentosin in the Versa Note which is a 50/50 mix from the bottle. Tests at just around -34 also. The tester works with a large needle indicator pointing to the temperature.
_________________________
2014 Nissan Versa Note 1.6 liter engine. 1997 Ford F150 4x4 4.6 liter engine.

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#4684944 - 03/05/18 09:02 AM Re: Testing premixed coolant with tester often shows.. [Re: TurboTravis]
Urshurak776 Offline


Registered: 08/21/12
Posts: 445
Loc: North Carolina
I have the Prestone tester. Picked it up at Walmart. You got me curious so i tested some 50/50 O'Reilleys Universal i have. Tested to -34.
_________________________
2012 Hyundai Santa Fe, 125,000 miles, Supertech Full Syn high mileage 5W-30, Auto7 Filter.
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#4684955 - 03/05/18 09:10 AM Re: Testing premixed coolant with tester often shows.. [Re: TurboTravis]
MRtv Offline


Registered: 01/04/16
Posts: 207
Loc: Ada county Idaho
I have used my Prestone tester over the years and have had various mixes in various vehicles. It has read anywhere from 0 to -40. With where I live anything from -34 to -24 is fine with me.
_________________________
2014 Nissan Versa Note 1.6 liter engine. 1997 Ford F150 4x4 4.6 liter engine.

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