WARMING-UP THE ENGINE IN COLD WEATHER.

Stratford Evening Post, Volume III, Issue 347, 30 April 1935, Page 2

WARMING-UP THE ENGINE IN COLD WEATHER.

Slow Idling Damaging,

A motoring hint that has received wide publicity is that when a cold engine is first started it should he allowed to idle for a minute or tw° so that the cylinders warm up and the oil circulates fully before the engine has to provide a big power output. In a sense that advice is accurate, taut according to many dependable experts one should avoid allowing the engine to tick over slowly, but should set it to rim at say six or eight hundred revolutions a minute. The explanation is that it is most desirable to hasten the circulation of the oil, since it had been found that most cylinder wear takes Place just after the cold engine fires. Furthermore, one of the products of combustion in the cylinders is water, and many motorists will have observed that when the car is fir.-t started steam may be i-muted from the exlmuM pipe, or drops of water fail from the outlet. That water comes from the cylinders, and unless promptly expelled will combine with the cylinder.gases and form carbouic acid, which is known to be very destructive of the metal surfaces.