[s-cars] antifreeze/coolant color

[R. Mair]

The simple answer is this. Put in your cooling system whatever came with it 
from OEM. Do not mix. I personally power flush all my cars every year and 
install fresh coolant from a brand name manufacturer. Putting in a coolant 
designed for a different car can be very bad, as changes to seals, outlets 
and metallurgy can be incompatible with a certain type coolant.

Rolf