Tocamak,
David Learmount, who wrote the Flight International article, was completely unsympathetic around 3 years ago - then he took some time to consider the evidence and now is sure that repeatedly breathing toxic fumes in a confined space makes some people seriously ill.
The only way to get to the bottom of it is a bit of honesty - what are the visible oil fumes made up of - why won't they tell us?
The next thing is they will be telling us: "They are good for us...."
DB
