Warm up procedures

[C M Smith <cmsmith@domain.elided>]

Depends on how old the car is. Modern fuel injected engines with synthetic 
lubricants require no warm up before driving. However, no engine should be 
asked to work hard or rev high until it has reached a reasonable temperature.

Redlining an engine with no load is far worse than with a full load. 
Inertia loadings peak on the exhaust stroke at TDC when the piston 
reverses. Loading the engine prevents the overshoot that will otherwise 
cause the engine to rev beyond redline even with a limiter. Bang is a usual 
noise heard as that occurs.

In Canada we still have folks who insist on idling their engines until 
warm. This is now known to be incorrect and increase engine wear.

Cheers

and the ITU is useful for any make. Any street engine will benefit from 
occasional full throttle high rpm activity.
Michael Smith
Calgary, Alberta,Canada
91 Alfa 164L
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