Will Toyota Long Life Coolant Separate?

Will the pre-diluted coolant from Toyota separate antifreeze from water if left untouched for years?

 

You think it wouldn't, I could be wrong though.

 

No it will not separate from the water. I would worry about the shelf life if it is that old.

 

Yea I bought some to top off my coolant in the overflow bottle like 10,000 miles into my truck (2008 model year). I had to add about a cup's worth more fluid at about 85,000 miles the other day. I didn't thoroughly shake up the bottle before pouring. I'm due for a coolant change at like 90,000 miles anyways so I'll just buy some new bottles then.