Antifreeze shelf life?
- Thread starter Thax
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You can buy an anti-freeze tester and try testing it. I've used AF that old in my beater but only after testing it and shaking it real well.
If its HOAT/OAT antifreeze (G-05, DexCool, etc.) then its probably fine. If its conventional inorganic inhibitor antifreeze, then don't use it. The fact that inorganic inhibitors precipitate out after a couple of years is the only reason we have the new HOAT/OAT coolants anyway. The inorganics work as well or better, but MUST be replaced every 2-3 years.
I did a quick search of "coolant shelf life".
For silicated coolants I found numbers of 1.5 to 2 years shelf life, but Peak recommended using it within 1 year of purchase. "Maybe" a bit longer for G05?
For other coolants I found shelf lives of 6 to 8 years mentioned.
Again, this was a very quick search and you should confirm for yourself.
At 10+ years, I would not use it.
For silicated coolants I found numbers of 1.5 to 2 years shelf life, but Peak recommended using it within 1 year of purchase. "Maybe" a bit longer for G05?
For other coolants I found shelf lives of 6 to 8 years mentioned.
Again, this was a very quick search and you should confirm for yourself.
At 10+ years, I would not use it.
Originally Posted By: Thax
Yeah I think im gonna get a tester and see what the condition of it is , might take to the recycling dump so im not tempted to use it lol
Check with your city. In most communities its perfectly legal and acceptable to pour coolant into the septic sewer system (don't put it in the street sewer system that goes to creeks, though). Glycol is readily broken down by the microbes in the sewage treatment plant, the silicates basically turn to sand, the phosphates and nitrogen compounds to fertilizer.
Seriously, its not motor oil. Coolant is only dangerous if an animal can drink it, it is quite harmless to the environment otherwise, unlike motor oil which breaks down FAR more slowly and can contaminate groundwater.
Yeah I think im gonna get a tester and see what the condition of it is , might take to the recycling dump so im not tempted to use it lol
Check with your city. In most communities its perfectly legal and acceptable to pour coolant into the septic sewer system (don't put it in the street sewer system that goes to creeks, though). Glycol is readily broken down by the microbes in the sewage treatment plant, the silicates basically turn to sand, the phosphates and nitrogen compounds to fertilizer.
Seriously, its not motor oil. Coolant is only dangerous if an animal can drink it, it is quite harmless to the environment otherwise, unlike motor oil which breaks down FAR more slowly and can contaminate groundwater.
I use tap water because none of my manual has any mention about distilled water is needed. I have no problem with tap water in my LS400 for 17 years, why should I bother go to store buying distilled water while the tap water is almost free ?
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