Quote:
Originally Posted by Old Tele man
...it's an engine function, not a transmission function...at least on the Cruze.
|
The lower the stall speed the more power it will take to maintain a given RPM at idle with the car standing still. Most newer automatic transmissions with a lock up torque converter will have a higher stall speed which would be impractical for daily driving without the lockup tq. With a low stall speed tq there are situations in D where allowing the the car crawl forward will actually consume less fuel per minute than standing still. With a high stall speed TQ you could idle in N, D, D at 1200rpm and the fuel consumption will hardly change.