I have a 2005 Base NA grand prix, 157,000miles.
130,000 miles had LIM job with gaskets, valve cover gaskets, etc.
The last two oil changes I have notice a reduction of oil. After 4400miles the DCI came up with low oil, I had to add about a qt back in. This oil change has had 1700miles into it and I check the oil and it was at the 2nd dot on the dip stick out of 4. I added approx 1/2 qt of oil in to get it above the 3rd dot.
I am not sure where the oil is going. All that I can see that could be a concern is sea-page on the oil pan. There is nothing on the ground.
Please let me know if these images look like an issue and if its oil pan or main seal issues. How to diagnose my issue?
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