1) Production Date: 06/1990
2) Mileage: 155438
3) Oil consumption per 1000 miles/1609 km: 1/3 qt
4) Oil Weight: Mobil1, 15W-50
5) Last Oil change Date/Mileage: ??/??/2007; 145,XXX (Yes, you can go 10k on full synth, easy. Just swap filters every 5k or so to be safe)
6a) I - MAF Conversion, that's all.
6b) H - Stocker
6c) E - Supersprint Cat-Back, OEM Cat
6d) CC - Stocker
6e) MC - Jim Conforti Chip
7) Other: I HAVE rebuilt the timing case and replaced all the gaskets on there, as well as both the upper & lower oil pan gaskets. I also repaired the threads for the valve cover bolts and replaced all the gaskets for the valve cover. That helped a LOT.