way to go Barrie... continue to escape my questions...
You must be one of those mechanics that give the bad reputation to all of the mechanics... "oh yeah that GM model is excellent...", a year later, "well, bad luck, head gaskets need to be replaced... you won't have any more problems after this...", another year later, "you transmission is busted, gotta put a new one in it".
I can so identify your type... old mentality, tried and tested is always the best way even though they cost more to run, break more often, pollute more, doesn't understand new technology that surrounds him... guys like you prevent the rest of us to go forward.