Does RV antifreeze go bad?

[dcb17b]

My neighbor gave me some RV antifreeze he's had in his garage. It has been a year or so since he has had a RV so I'm not sure how old it is.

[dcb17b]

Thank you for the replies. They appear to be sealed and still very pink.

[d3500ram]

If you are concerned about any funk in it, just use it in the toilet and traps and get the fresh stuff for the domestic water supply.

[DrewE]

It doesn't generally go bad. The dye may fade or change over time, but the ethanol and/or propylene glycol doesn't break down, at least over the course of a few years, assuming the container is closed so the contents cannot evaporate. If it's a few decades old or has evidence of some weird slime growing or something like that, I'd probably pass, but otherwise it shouldn't be any problem at all.

[RobWNY]

Sealed Yes. Unsealed, I wouldn't trust it. Whatever you do, don't dump it on your lawn unless you want a big dead grass area. Don't ask me how I know.

[Mfan]

Is it sealed yet?

[Lwiddis]

All chemical combinations “go bad.”