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

Over the Hill

Registered: 10/16/01
Posts: 3214
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)
_________________________
Problems huh? Then Read THE Book. Signed: A natural borne "neanderthal".
________________________________________ ____________________
Toreador Red 2001 Mercury Grand Marquis .... with some minor mods. joy
I've been hated before. cool2 I still am by some maybe? shrug ... I got over it. cool

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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.
_________________________


1998 Crown Victoria LX, 4.6L V8, 158,000 mi., All original equipment
2014 Black GT Premium 401A / Track Pack / Kooks LTH / Roush Phase 3+ SC
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: 3214
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 huh? Then Read THE Book. Signed: A natural borne "neanderthal".
________________________________________ ____________________
Toreador Red 2001 Mercury Grand Marquis .... with some minor mods. joy
I've been hated before. cool2 I still am by some maybe? shrug ... I got over it. cool

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

Registered: 02/26/08
Posts: 624
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: 3147
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: 3214
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 huh? Then Read THE Book. Signed: A natural borne "neanderthal".
________________________________________ ____________________
Toreador Red 2001 Mercury Grand Marquis .... with some minor mods. joy
I've been hated before. cool2 I still am by some maybe? shrug ... I got over it. cool

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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: 2160
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: 3214
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 huh? Then Read THE Book. Signed: A natural borne "neanderthal".
________________________________________ ____________________
Toreador Red 2001 Mercury Grand Marquis .... with some minor mods. joy
I've been hated before. cool2 I still am by some maybe? shrug ... I got over it. cool

Top
#4106386 - 04/26/21 12:55 AM Re: Coolant [Re: CrystalPistol]
CrystalPistol Offline

Over the Hill

Registered: 10/16/01
Posts: 3214
Loc: Shenandoah Valley
Never did get a reply. shrug
_________________________
Problems huh? Then Read THE Book. Signed: A natural borne "neanderthal".
________________________________________ ____________________
Toreador Red 2001 Mercury Grand Marquis .... with some minor mods. joy
I've been hated before. cool2 I still am by some maybe? shrug ... I got over it. cool

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#4106416 - 04/26/21 12:19 PM Re: Coolant [Re: CrystalPistol]
GM_Guy Offline
Posting Addict

Registered: 12/17/00
Posts: 18511
Loc: London, Ontario Canada
If your car hasn't exploded in a geyser of steam, that answers that. While I have no idea what any official answer is, if its sealed, I'll use it.
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#4106428 - 04/26/21 03:43 PM Re: Coolant [Re: CrystalPistol]
RF_Overlord Offline

Poobah

Registered: 12/14/02
Posts: 7506
Loc: MA
The reason they won't tell you is the same as why Ford will never say that it's OK to use something other than 5W-20...it'll get them in dutch with the gummint. Also, they won't sell as much if you don't keep throwing away perfectly good coolant after only 3 years.

If that sounds bitter and cynical, you're right. Age does that to a fella...
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Trilogy Motorsports supercharged #61
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'00 Grand Marquis GS (Silver)
Rotted frame and broken transmission crossmember
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#4106430 - 04/26/21 04:47 PM Re: Coolant [Re: CrystalPistol]
UnkleVic Offline
Rookie

Registered: 07/24/17
Posts: 90
Loc: US Gulf Coast
It would be interesting to run a lab test on the coolant but it would probably cost more than you saved on the coolant.

I'd use it without concern. Seen too many vehicles that probably never had a fluid change.

Noticed that some coolants previously rated ASTM D-4985, heavy duty, are now rated D-3306, light duty.
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1999 P73

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#4106442 - 04/26/21 08:39 PM Re: Coolant [Re: UnkleVic]
professorP7B Offline

Member

Registered: 04/02/20
Posts: 284
Loc: Rhode Island
When I replaced the radiator in 2020 in the 2007 Galant I used to have I threw in an unopened bottle of NAPA coolant from 2002. double thumbs
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Teacher/Technician. First-time Ford owner. ASE-certified Advanced Level Specialist.
Current vehicles:
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Purchased 3/27/20 w/51K, 819 idle hrs.
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#4106468 - 04/27/21 12:52 AM Re: Coolant [Re: CrystalPistol]
Blu Offline

Climber

Registered: 11/27/07
Posts: 565
Loc: Milwaukee, WI
I've noticed a lot of chemicals in metal containers list the shelf life as 2 years unopened, but have been viable in use.

I would have no qualms using it.

The Pull apart nearby has 'recycled' coolant in milk jugs with a funky brown tinge to it. I would not use that.

Does properly stored, unopened alcohol really ever go bad?
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#4106566 - 04/27/21 05:50 PM Re: Coolant [Re: CrystalPistol]
GM_Guy Offline
Posting Addict

Registered: 12/17/00
Posts: 18511
Loc: London, Ontario Canada
Exactly. Some alcohols get better with age.
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