probably not...... I mean it could be..... but I would first look into it, and see if it has sediment or has sperated.....
however I will say this.... I would just dispose of it properly... while new stuff isn't cheap. piece of mind of buying new stuff, is far better than chancing 10 year old antifreeze, in your cooling system......
haha, I have one in the garage too.... haven't owned a toyota since 2009.....
