If you don't open the air-tight seal, can last quite long. Perhaps 2 years or 3 years tops? If opened, it's oxidised and exposed to moisture. I wouldn't keep that too long. Maybe can use it as flushing oil.
anyone would like to suggest me..
i wanna upgrade my turbo..
does upgrading a bigger cc turbo..will effect a small cc turbo car..
such as a charade having a rb20 or b8 or other bigger turbo.tq