OK, this whole proper coolant for Vanagon issue seems somewhat baffling to
 me.  Someone in a recent posting offering advice on whether to buy a Westy
 said they were concerned about the green coolant.  My coolant is green
 straight out of the container.  It is Prestone brand.  It says safe for all
 aluminum parts on the label, but it doesn't say phosphate free.  So is
 Prestone safe?  If not, what brands are safe?  What do phosphates damage in
 the engine?

 Thank you,

 Eric in NC
1988 Westy