Cold start
Question: Although this sounds counter-intuitive, I find that my car (a Ford
Mondeo, if that is relevant) always seems to perform better on a damp, cold day
rather than on a dry, warm one. Why should this be?
Answer: There are several ways of improving the power produced by an internal
combustion engine and one of these is responsible for the improved performance
seen by your correspondent.
Cold weather will increase the density of the atmosphere slightly, allowing
more oxygen to be inducted into the cylinder. However on a damp day, the air
that is sucked into the…
