From A. W. THOMAS
While having no experience with the auxiliary devices for car engines
mentioned by Chris Bowers (Letters, 13 April) I can report good results
from a device I have used for 40 years on various cars. It is an immersion
heater inserted in the bottom hose, switched on at 5.00 in the morning.
A warm engine and no condensation makes it well worthwhile. Also, the
much higher rate of bore wear in the first 5 minutes is avoided.
A. W. Thomas Rugby Warwickshire
