Originally Posted by FCPGroton
I would use 10w-40 where you are. I don't believe it ever gets below freezing in Hong Kong so you will be fine.
Min Temp: around 10 Celsius or 50 Fahrenheit
Max Temp: around 33 Celsius or 91 Fahrenheit
Rel. Humidity is probably above 80 all the time (I'm not sure, but it's really humid here)
How do 10w-40 compare to 5w30?
I'm thinking to get the original BMW 5w30 High Performance oil.