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Is -25F rated washer fluid good enough? #4634653
01/14/18 12:50 PM
01/14/18 12:50 PM
Joined: May 2002
Posts: 21,196
Oakville, Ontario
Patman Offline OP
Patman  Offline OP
Joined: May 2002
Posts: 21,196
Oakville, Ontario
When I was at a Walmart in Niagara Falls NY a few weeks ago I noticed that they sell the -25F rated washer fluid for only around $2, so I picked up a couple of jugs. I'm wondering if anyone else uses this stuff and does it actually work well or do you find that it's not as good below 0F as the other kinds? I don't ever recall it getting down to -25F here, but it has gone below -10F a few times in recent memory. Will I be ok in my climate using this stuff?


2018 Corvette, 9k, M1 ESP Formula 5w30 & NAPA Gold
2006 Civic EX Coupe, 148k, PUP 5w20 & Fram Ultra
2010 BMW 328i X-Drive,110k, GC 0w40 & Fram Ultra

Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634658
01/14/18 12:57 PM
01/14/18 12:57 PM
Joined: Mar 2008
Posts: 7,343
USA
slacktide_bitog Offline
slacktide_bitog  Offline
Joined: Mar 2008
Posts: 7,343
USA
It will be fine. It's the lowest temp stuff you can find at a good price without the Rain-X, and it's a pretty purple color too smile

Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634661
01/14/18 12:59 PM
01/14/18 12:59 PM
Joined: Aug 2017
Posts: 565
Nebraska
BJD78 Offline
BJD78  Offline
Joined: Aug 2017
Posts: 565
Nebraska
Growing up in fargo ND back in the 60's and 70's, my dad (now long ago deceased) used to always dump in a bottle of drug store alcohol in to the washer fluid reservoir every winter. He added it to the blue stuff which is good to -25. Not sure how much lower it could go with the alcohol, but I know we had at least a few days in the -30 or more range and I dont think the fluid ever froze up. I use the blue stuff and it has never dropped below -25 here as far as I know. For the most part we only use the washer fluid when temps are above about +20 anyway and salt spray and slush needs to be washed off.


2010 Forester:122K
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2010 Tucson:55K

OCI 5K using the cheapest dino oil I can buy,usually NAPA or TSC Travelers oil.
Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634662
01/14/18 01:01 PM
01/14/18 01:01 PM
Joined: Sep 2005
Posts: 5,911
MIchigan
Warstud Online content
Warstud  Online Content
Joined: Sep 2005
Posts: 5,911
MIchigan
I would just use it but check the reservoir in 24 hrs to make sure it hasn't froze or gotten slushy. You can always add isopropyl alcohol to lower the freezing point.

Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634667
01/14/18 01:03 PM
01/14/18 01:03 PM
Joined: Mar 2013
Posts: 5,037
The Midwest
skyactiv Offline
skyactiv  Offline
Joined: Mar 2013
Posts: 5,037
The Midwest
I snapped a pic for a post on this site last year:

https://bobistheoilguy.com/forums/ubbthreads.php/topics/4369784/Re:_ISO_Heet_and_Pink_Windshie





Wife: 15' Audi A4 quattro 6 speed manual
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Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634669
01/14/18 01:06 PM
01/14/18 01:06 PM
Joined: Nov 2016
Posts: 1,283
WI
HoosierJeeper Offline
HoosierJeeper  Offline
Joined: Nov 2016
Posts: 1,283
WI
It freezes on me once it's about -10F out, with the Walmart blue -20F. So that stuff might freeze at -15F or so.

Last edited by HoosierJeeper; 01/14/18 01:07 PM.

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: Is -25F rated washer fluid good enough? [Re: Warstud] #4634670
01/14/18 01:07 PM
01/14/18 01:07 PM
Joined: May 2002
Posts: 21,196
Oakville, Ontario
Patman Offline OP
Patman  Offline OP
Joined: May 2002
Posts: 21,196
Oakville, Ontario
Originally Posted By: slacktide_bitog
It will be fine. It's the lowest temp stuff you can find at a good price without the Rain-X, and it's a pretty purple color too smile


Actually it's pink.


Originally Posted By: Warstud
I would just use it but check the reservoir in 24 hrs to make sure it hasn't froze or gotten slushy. You can always add isopropyl alcohol to lower the freezing point.


I have been keeping the jugs of this stuff in the trunk of my Civic and haven't noticed it getting slushy during our coldest nights. I just wonder if it'll completely freeze over once I spray it on the windshield on a cold morning.

Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634696
01/14/18 01:41 PM
01/14/18 01:41 PM
Joined: Sep 2013
Posts: 10,683
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,683
Indiana
In the spray form, the alcohol may evaporate out and leave your windshield appearing frosty.

It won't freeze if just sitting in a jug.


03 Jeep WJ 4.0 202k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 186k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 153k Synpower 5w30 Supertech ST3980 (Ecore)

Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634697
01/14/18 01:43 PM
01/14/18 01:43 PM
Joined: Mar 2009
Posts: 2,679
Cedarbrae, Ontario
xxch4osxx Offline
xxch4osxx  Offline
Joined: Mar 2009
Posts: 2,679
Cedarbrae, Ontario
Originally Posted By: Patman
When I was at a Walmart in Niagara Falls NY a few weeks ago I noticed that they sell the -25F rated washer fluid for only around $2, so I picked up a couple of jugs. I'm wondering if anyone else uses this stuff and does it actually work well or do you find that it's not as good below 0F as the other kinds? I don't ever recall it getting down to -25F here, but it has gone below -10F a few times in recent memory. Will I be ok in my climate using this stuff?
It was -22F here back a week or so ago.


2015 RAM SXT Crew Cab 5.7 with 6 speed tranny.

2008 Mazda 3 GS Sport Hatchback 5sp MT (Girlfriend's car)

Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634708
01/14/18 01:55 PM
01/14/18 01:55 PM
Joined: Oct 2002
Posts: 22,168
Colorado Springs
Drew99GT Offline
Drew99GT  Offline
Joined: Oct 2002
Posts: 22,168
Colorado Springs
I'm using that pink Supertech fluid currently. Meh, it's OK. It will clear the windshield but it tends to leave a very fine layer of frost when it's really cold. For the price though, it's good enough.

Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634732
01/14/18 02:18 PM
01/14/18 02:18 PM
Joined: Nov 2011
Posts: 4,970
MTL, CANADA
Rolla07 Offline
Rolla07  Offline
Joined: Nov 2011
Posts: 4,970
MTL, CANADA
I use local stuff that claims -40 celsius. Ive used it to -30 celsius with no issues. I have also used -25 F fluid with no issues. I doubt you will have any issues.


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634742
01/14/18 02:28 PM
01/14/18 02:28 PM
Joined: Oct 2006
Posts: 1,883
Oshawa, Ont. Canada
irv Offline
irv  Offline
Joined: Oct 2006
Posts: 1,883
Oshawa, Ont. Canada
Originally Posted By: Patman
When I was at a Walmart in Niagara Falls NY a few weeks ago I noticed that they sell the -25F rated washer fluid for only around $2, so I picked up a couple of jugs. I'm wondering if anyone else uses this stuff and does it actually work well or do you find that it's not as good below 0F as the other kinds? I don't ever recall it getting down to -25F here, but it has gone below -10F a few times in recent memory. Will I be ok in my climate using this stuff?


I'm surprised you purchased that, Patman, (despite the cheap cost) considering the temps we have seen here lately. Experience tells me nothing less that -40 -45 for our winters, even though, until this year, we haven't had hardly any winters.

Costco sells, on sale, occasionally, 4 jugs of their brand for $8.50, which is -45 rated. I am unsure if it is the best I have ever used, but so far so good as far as freezing goes. Keep your eyes out for it and stock up when you see it. cheers


2017 Chevy Impala 3.6 L.
2013 Ram 5.7 L Hemi Bighorn QC 4x4
2008 Chevy Malibu 2.4 L Ecotec
Pennzoil Platinum and/or Pennzoil Ultra Platinum in all 3.
Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634771
01/14/18 03:12 PM
01/14/18 03:12 PM
Joined: Mar 2015
Posts: 11,884
In the shop
53' Stude Online content
53' Stude  Online Content
Joined: Mar 2015
Posts: 11,884
In the shop
I was using the pink ST fluid. This morning the stuff froze in one line. frown
It was -7F this morning at 7:00 a.m. BTW


I spent 20 minutes heating the lines and cleaning goo out of nozzles. Put some safety kleen fluid in from work so all good now


Next time I'll use Prestone stuff

Last edited by car51; 01/14/18 03:13 PM.

09' Camry LE, 141,020 miles

PP 5w30 and TG 4967
Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634783
01/14/18 03:23 PM
01/14/18 03:23 PM
Joined: Dec 2014
Posts: 1,684
'murica
Ethan1 Offline
Ethan1  Offline
Joined: Dec 2014
Posts: 1,684
'murica
If we're talking about the Supertech house brand, the blue dye in there will clump up and clog your washer pump. Blue and green mixes are affected. If you don't believe me, leave a jug in your garage for a few months and look inside. You'll find blue stringy clumps of dye.

Re: Is -25F rated washer fluid good enough? [Re: Patman] #4634798
01/14/18 03:32 PM
01/14/18 03:32 PM
Joined: Jun 2002
Posts: 12,646
The Motor City
Kestas Offline
Kestas  Offline
Joined: Jun 2002
Posts: 12,646
The Motor City
I once had to deal with the cloudy mess. This is harder to diagnose with modern cars since they now bury the washer bottle under everything.

When I get clog issues, I disconnect the system and reverse flush all the lines, then drain the bottle and flush it out.

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