Hi, I just got an old Apple-original motherboard replacement. It comes with a (sealed) thermal paste syringe (Chinese but provided by Apple). But it was made 10 years ago. Would you use it? I asked it to the guy in my local PC shop and he said that it's sealed, so it's OK to use it no matter how old it is. But I googled and found diversity of opinions about old thermal paste. What would you do?