Q: Oil pressure

asked by on November 12, 2016

When i first start the car my pressure guage reads 0. If i drive for about 10 minutes it starts to read pressure. As long as i am moving i will read pressure. When i stop at a light oil pressure goes back to zero and then back up when i move again.

What could cause this to happen?

My car has 140000 miles.
My car has an automatic transmission.

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