While driving around today the oil pressure light on the oil pressure gauge in the dash came on momentarily a few times. When I first start the car the presure is at 3 whether I am accelerating or at idle. Once the engine warms up I notice the gauge goes all the way down to zero at idle but rises immeadiately as soon as I accelerate. I believe the light would come on while coasting at idle. When I saw the light come on I would step on the accelerator and the needle would rise and the light goes off. I checked the oil level and it is fine. I will call a service center for an opinion but I thought I would ask all of you first. Thank you.