In article ,
Roger Hayter wrote:
I think what you do is exactly the right thing to do with torque
converter transmission. I've no idea about the newer systems. Perhaps
if they disengage completely when stopped there is no reason to take
them out of "drive".

There's generally no need to put a TC transmission in neutral under heavy
traffic conditions, as the TC is designed to handle vastly more heat than
this generates. Like when going up hill, etc.

With a conventional clutch type, the clutch only 'slips' when moving off
from rest. With idling in a traffic jam in drive, it is slightly engaged
to provide the creep function. And since many are multi plate wet types,
may also drag slightly at all times when nominally disengaged, generating
some heat. But in neutral or park, any drag will simply spin the
layshaft(s)

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*A 'jiffy' is an actual unit of time for 1/100th of a second.

Dave Plowman London SW
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