I checked the engine oil and trans.fluid levels and they are fine,but when the car has been running the check oil light comes on when i'm at a stop.It blinks fast but when i start moving it goes away.What can it be?

 

Is the light red or yellow? Blinking yellow means misfire, blinking red is oil pressure.

 

How old is the oil? It could be thinned out by being old or contaminated with gas (from a bad misfire situation). Or the filter is blocked. So if they're not new I'd suggest changing the oil and filter. Also as an engine wears the oil pressure at idle will drop. Using a heavier oil helps that some but in wintertime you should stay with lighter oil.