Coolant Query
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Hotshot
Joined: Feb 2004
Posts: 10,867
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From: The Shenandoah Valley
Coolant Query
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/antifr...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 ????
https://peakauto.com/products/antifr...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 ????
Fleet Owner
Joined: Aug 2010
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From: Reynoldsburg, Ohio
Post Fiend
Joined: Apr 2002
Posts: 19,311
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From: Waterloo, Iowa
The actual "antifreeze" part, the glycol, never wears out in engine coolant, is my understanding. That's true whether it's in the jug or in your radiator. So it will continue to protect from freezing.
What requires periodic replacement are the corrosion and rust inhibitors. These chemicals get depleted or used up circulating inside the engine and radiator, and any sediment, rust, and scale gets flushed out along with the old coolant when new coolant is added..I wouldn't hesitate to use concentrate in the original sealed container.
What requires periodic replacement are the corrosion and rust inhibitors. These chemicals get depleted or used up circulating inside the engine and radiator, and any sediment, rust, and scale gets flushed out along with the old coolant when new coolant is added..I wouldn't hesitate to use concentrate in the original sealed container.
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