[x300] Renewing Coolant (X308)

In reply to a message from uncle sent Mon 18 Jun 2007:

hmmmmm, a bit simplistic. I am glad that I did the research that I
did.–
Alex Kitney
Calvert Green, Buckinghamshire, United Kingdom
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
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A lot of discussion about the correct fluid but what is the proper procedure for replacing the coolant in a 1990 Jaguar XJS V12? Any help is appreciated. Also, should I flush or just replace?

You really should ask in the #xj-s section. You can find good info there already, you want to flush, and you want to install some fitting at the highest point to get the air bled, but that is not mandatory.
I‘d say get the green coolant if that’s what was in it.