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#4085236 - 11/22/20 03:02 PM Coolant
CrystalPistol Offline

Over the Hill

Registered: 10/16/01
Posts: 3035
Loc: Shenandoah Valley
A few years ago I ran up on a great sale (under $5 per gallon as I recall, sale was aimed at commercial accounts) of Peak Long Life 5 year / 150,000 mile concentrate coolant. At the time, with two MCs, 2PUs, and 5 cars that were liquid cooled, I bought 3 or 4 cases. It is designed for all cars & all MCs and all vehicle cooling systems. It is yellow, it is silicate & phosphate free too.

https://peakauto.com/products/antifreeze-and-cool/auto/long-life-full-strength/

Today, checking to make sure it was OK in my Fords (and it is as I thought), I looked it up too and I see in a spec sheet they mention a shelf life of 3 years in an unopened original container, of which I have probably 25 left, though I have sold some of the vehicles and MCs.

So my question is:
How does … a concentrated coolant product …
last longer … mixed with distilled water @ 50/50 or 60/40 in a cooling system …
than it does … in an unopened sealed original container in cool, dark, basement shop storage ????

I sent a query, no answer yet.

I know from past reads here, some of you will know.

Thank You.


Edited by CrystalPistol (11/22/20 03:15 PM)
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____________________________________ __________________
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#4085426 - 11/24/20 01:26 AM Re: Coolant [Re: CrystalPistol]
crjackson Offline
Member

Registered: 09/02/15
Posts: 111
Loc: Charlotte, NC
Wow! I’ll be watching for a response as well.

I don’t believe it went bad on the shelf, but perhaps some of the anti-corrosion chemicals degrade over time, or have a half-life of some sort.

I’d probably open one, and check the specific gravity. If it checks out, I’d personally probably use it, and just keep a watchful eye by testing it periodically.

I hope someone pops in with the real scoop on this however.
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1998 Crown Victoria LX, 4.6L V8, 158,000 mi., All original equipment
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2018 Black Nissan 370Z Nismo Tech, All Options, 10K mi., All original equipment



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#4085458 - 11/24/20 12:15 PM Re: Coolant [Re: crjackson]
CrystalPistol Offline

Over the Hill

Registered: 10/16/01
Posts: 3035
Loc: Shenandoah Valley
Originally Posted By crjackson
Wow! I’ll be watching for a response as well.

I don’t believe it went bad on the shelf, but perhaps some of the anti-corrosion chemicals degrade over time, or have a half-life of some sort.

I’d probably open one, and check the specific gravity. If it checks out, I’d personally probably use it, and just keep a watchful eye by testing it periodically.

I hope someone pops in with the real scoop on this however.
I hope not. I'll post back if I get anything.


I almost think it's a marketing deal.


Edited by CrystalPistol (11/24/20 12:52 PM)
_________________________
Problems? Read The Book. Signed: A natural borne "neanderthal", w/s.
____________________________________ __________________
Toreador Red 2001 Mercury Grand Marquis ..... with some minor mods.

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#4085460 - 11/24/20 01:03 PM Re: Coolant [Re: CrystalPistol]
Rootintootin Offline
Climber

Registered: 02/26/08
Posts: 621
Loc: North Carolina
It could just be somebody didn't do too good a job of proofreading their ads and/or spec sheets. Or, maybe they reformulated during the few years since you bought the original stuff. What is the date of the spec sheet? Does it go back far enough to cover the stuff you bought way back when? Does the label of what is currently available still say Peak Long Life 5 year / 150,000 mile concentrate coolant?
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97 CVPI, 142K miles, small trans fluid leak from front seal area, water leaks to inside from evaporator housing and drivers side A pillar, cold weather glitch with wiper motor, headliner covering starting to flake off, tear in drivers seat bottom. Flickering, blinking radio display, What's next?

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#4085464 - 11/24/20 01:10 PM Re: Coolant [Re: CrystalPistol]
2007CrownVic Offline
Over the Hill

Registered: 11/19/11
Posts: 3135
Loc: Canada
There is a shelf life but it should be longer then 3 years.

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#4085498 - 11/24/20 05:20 PM Re: Coolant [Re: CrystalPistol]
CrystalPistol Offline

Over the Hill

Registered: 10/16/01
Posts: 3035
Loc: Shenandoah Valley
I looked it up online, same exact stuff. I bought mine in maybe 2016 or 2017. I'm gonna use it, if still sealed I know it's not contaminated, I can shake it up prior to use with distilled water. It's not likely to develope a charge in the absence of metal blocks or heads or rubber seals, etc. Just a curiosity on my part. Still nothing from Peak.


Later then .... & Thanks
_________________________
Problems? Read The Book. Signed: A natural borne "neanderthal", w/s.
____________________________________ __________________
Toreador Red 2001 Mercury Grand Marquis ..... with some minor mods.

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#4085538 - 11/24/20 09:37 PM Re: Coolant [Re: CrystalPistol]
Old_Guy_Stu Offline

Over the Hill

Registered: 04/28/19
Posts: 2077
Loc: Cleveland, OH
My guess is the additives settle out after a while. Don't know what else it could be, but I are not a chemist.
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1988 CVLX Formal Roof (Love Boat) POTM July 2019 & Aug 2020, 55K
E-code lights w/ relays, LEDs w/ switchbacks, 15x8 Ansen slots w/ 255/60 BFG's, Kenwood stereo, various hacks.
1988 CVLX (Destroyer) 1998-2001 driven to death 202K
1988 Squire (Chris Craft) 1996-1998 junkyard rescue driven to death 199K

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#4088394 - 12/21/20 01:40 AM Re: Coolant [Re: Old_Guy_Stu]
CrystalPistol Offline

Over the Hill

Registered: 10/16/01
Posts: 3035
Loc: Shenandoah Valley
Originally Posted By Old_Guy_Stu
My guess is the additives settle out after a while. Don't know what else it could be, but I are not a chemist.
Well, I'd give the jug a good shake anyway. What settles out will be in the jug if sealed still, and no way it's gonna evaporate still sealed.

Maybe they mean shelf life after the jug is unsealed?

Never did get a reply, but the more I look, the more that seams the only way possible, if not kept in a closed container maybe?

Maybe my question was too difficult?


Edited by CrystalPistol (12/21/20 01:41 AM)
_________________________
Problems? Read The Book. Signed: A natural borne "neanderthal", w/s.
____________________________________ __________________
Toreador Red 2001 Mercury Grand Marquis ..... with some minor mods.

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