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.
tried using the "search" button and doesn't exactly found topic that could answer my questions..so i just start a new one..hopefully can get answer to my questions..
Time for me to renew my roadtax. Do any of you have contacts to get insurance for the old sw20? :) mine is 1992/1996.
Please do PM me the contact number for any agents you know who can take this car.