In my experience the customer is always right.  If you want blue coolant in
your van, and are willing to pay for it, then I put it in.  If you want
green, then I put that in (I recommend green).  The point is they should have
asked you ahead of time (or maybe you should have told them?) your coolant
preference and then done what you wanted.  This saves alot of problems.
Even if the coolants are the same as far as protection goes ( I think they
are) you will always have this thing in your mind that if you had just gone
with the blue stuff the gaskets would have lasted longer, etc (even if it is
only a mental thing).
I try to ask my customers all of their preferences on stuff like this before
I get started.  It is their van after all :)

Ken Wilford
http://www.vanagain.com
John 3:16
Office (856)-765-1583
Shop (856)-327-0027
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