Idling RPM


#1

My car has a manual transmission and when I first start it up in the mornings, the RPM (in neutral) floats around 1200 rpm but after driving for a bit (maybe even as little as 5 minutes), I notice the RPM in neutral drop down to 500 or 600 rpm. Is this normal?


#2

Yes it is normal, cars have a ‘warm up’ phase. The engine is set to run at higher rpm’s untill it reaches operating temperature. Then the engine will slow the rpm’s to it’s idling speed.


#3

Yes, perfectly normal.