Is there an expiration date on coolant?

[bull]

I have 6 or 7 gallon jugs of antifreeze on a shelf in my garage and I decided to label them so I know what's what. Then i started thinking about the stuff and realized that some of it came out of cars I had 10+ years ago. I think the newest used coolant is what I drained out of my Dakota when I replaced the radiator about four years ago. Can you keep this stuff and use it indefinitely or does it go bad?

[bordin34]

Why keep used coolant? Is this coolant you flushed from old cars to replace.

[Charger-Bodie]

Why keep used coolant? Is this coolant you flushed from old cars to replace.

If it wasnt good enuf to put back in whatever you drained it from , you will probably never use it.

[bull]

Why keep used coolant?

Because I don't know if it has an expiration date.

I mainly kept it for topping off the cooling systems once they "burped" themselves or for refilling leaking systems until I could fix them. I don't drive junk cars like I used to so all my cooling systems are tight but after saving these jugs here and there for 10 years I now have a "collection" of sorts. I'm going to get rid of at least five jugs but I just want to know if it goes bad or not so I can maybe save one gallon for future use.

[firefighter3931]

Coolant (mixed) has a service life.....i would get rid of the used stuff. 


Ron

[bull]

Thanks. I was hoping someone would say that.