this morning I went to check my oil and it was a bit low, but still above the red plastic piece on the dipstick. I added about 3/4 of a quart. When I first turned the car on, I heard clicking (like valves tapping) for about 5 seconds, then it disappeared. If the oil level is o.k. why would the valves be tapping? Could the noise be something else possibly?

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headrivenoise... listen.