I just bought a 99 GTP from a retired original owner. It is in very good shape. I have had it a couple weeks and have noticed a slight burning oil smell after driving it. Today was the first time I have put a lot of miles on it (100 or so) and I noticed some oil on the garage floor. The car has only had about 10000 miles out on it since 2007 so I am worried about dried or cracked gaskets. I don't notice anything out of he ordinary when I drive it. It has never had the intake manifold gaskets done. They are still black, not silver. What are your thoughts?