My 2006 Chevy Cobalt when warmed up seems to want to lose power when stopping at

[coolishmo]

stop light or stop signs.?
Just got oil change and new air filter put on.

[Lyonsroar]

I have a 2000 Volvo S40 and I think it's to be expected when it's very cold out. All cars, especially 4 cylinders, have to work really hard when it's cold outside.

I say, unless it stalls on you, don't worry about it!

[Travass]

I have an 07 Cobalt and i sometimes experience that. The car has a 4 cylinder engine its to be expected. When its cold, an engine make more power which could explain why it doesnt do it when its cold out.

[Eric]

Not typical behavior That sucks with a new car and all.
How is the oil level?
Air filter good?
High milage Recent tune up?
Any check engine lights?
CAr is till under warranty, perhaps a visit to GM's service department?