Quote Originally Posted by marines542 View Post
Yea there could be. If I were u I wouldn't worry about it unless u start loosing coolant

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I fill the coolant to the cold line when the car sit overnight last week. The coolant level hasn't changed much yet. It is a little over the coolant line now since the weather is much warmer this week. I will keep watching it.

I have tried get the air out of the yellow circled space maybe 10 times (Maybe total 100 or so air space) and I am amazed how much air can be trapped in the cooling system after a flush. I will keep purging the air out of the reservoir and see whether I can get all the air out and the air stops coming back to the yellow circled area.