Somewhere on here this has been covered before but I can't seem to find it, probably buried in a post somewhere.
I did have a printed copy but God knows where that is, I have looked where I 'should have put it'.....

My engine number starts '9M U H' folllowed by the engine number itself.
I remember that the '9M' bit signifies a 948 engine but what does the 'U H' signify?
Perhaps someone could post up a list of prefixes and their definitions on here that everyone could refer to.
Many thanks,
Mike.