When changing LC coolant

[frank2005]

I don't know when the last time it was done

How to know if it is still good

LC liquid test ?

[SirDigby]

idk what LC liquid test is. probably a pH test would let you know if it has acidified. I would just change it. Toyota pink is good for 100,000 mi. (161,000km) Toyota red is....uh, 50,000 mi. (?) (80,500km)

[zimmer]

Wouldn't hurt to change it right now just to be sure, perfect time to check for any leak as well.