50/50? thats what I use.Some later model cars,trucks,and vans use what they call"permanent"antifreeze.it has a red color,and doesnt blend with the green glycol...so beware.
(hide) If you only look at some of the discussion boards on a regular basis you can add them to your favourite boards list by going to the Board page and clicking "Add to my favourite boards". (pauloaguia) (show all tips)