Les Hemmings wrote:

sources, free from warm air, clear of the road and in the shade. My car
doesn't have a thermometer and I was thinking of adding one of those digital
ones with a probe on the end of a wire. Anyone tried this with any success?

I too have fitted one of the Maplin ones, with the sensor behind the
front bumper. It seems to be reasonably accurate on the move or in the
shade when the engine is cold, but warms up quite rapidly when standing
in traffic.
--
Steve Loft, Glenlivet. 200m ASL
Weather and webcam:
http://www.livet.org.uk/weather