Orange ones are quick, but banana yellow are quicker! Actually, if an engine
is painted in a reflective colour, it may actually make more power...... no,
bear with me here! An internal combustion engine is more efficient at higher
temperatures, so long as all the components can take it. We have a customer
who is a lecturer in thermo dynamics or something like that! He runs his
Morris Minor at 98C. Once the carb was set up correctly there was a
significant increase in power output! And his heater works *really* well! He
obviously has to run the cooling system at a much higher pressure to raise
the boiling point.
So if the engine colour affects heat dissipation, it (in theory!) can affect
the power potential. However, I don't think we would notice the minute
difference it might make!

One point that is more sensible here is that if you have overheating
problems, don't go chroming everything under the bonnet. It will make it
worse.

9mm !!  its a perfectly good term Steve,
its what's known as a tolerance term,   :-)
(he said,, with eyebrows raised and a slight smile)
its a bit like saying 8milimeterish,,,,( give or take a MM either side)
I think its a "Scouse term"

seriously though,,,,, I would say 0.010mm,

Fitzy,