Oil Light

I have a question when I start my car in the morning. When I turn the key and start the car the oil light stays on for like 2 seconds and shuts off. And I can shut the car down the car again and start up and it doesn't come up for secs its shuts off with the rest of the lights. Now is this a problem I would like to know. I just use to use castrol synthetic, but this time I added mobil synthetic 4 quarts. The oil problaby has around 500 miles on it. Thx for your help in advance.

It is normal for the oil light to come on for a few seconds when you first start the car.

Yup it is totally normal for that to happen, nothing to worry about.