RV antifreeze concentrate

[cpaharley2008]

Does anyone know if rv antifreeze goes bad with age? I have 2 bottles of rv concentrate, in 2 jugs where you add water to the concentrate to make the correct mix of antifreeze. Supposedly good for -20 fahrenheit. Age is maybe 6 years. Any thoughts?

 

[Iowa Dave]

I do not know about the concentrate but the regular premixed stuff stays good even when stored where temperatures get to -20F and as warm as 100F. I bought 12 gallons about 5 years ago and used the last of it last fall and everything was good this spring. Trailer, sprayer and a couple other pumps I have.
Iowa Dave