Im looking at a 93 Foxbody. been my dream car forever. It has a rebuilt 302 with aftermarket heads , cam and Intake. Owner told me that it was rebuilt in 2014 ,but only has 1800 miles on it. Now to my question I checked the oil and it was black with very small metal shavings. I understand that the first oil change will be black from rebuild grease, but shouldnt it be cleared out by now? Owner said Rotella oil was used since it was rebuilt and has been changed muitiple times. Any comments will be greatly appreciated!!