I am going tomorow to look at a '96 seville SLS with only 64,000 miles and very clean I've looked at her before and am taking it on an extensive test drive tomorow. My questions are the northstar head gasket problems really as bad as people say or is it simply a lack of maintnace thing? Are there issues or service recalls for the 1996 model year for these cars? For those of you who own this model year of seville or northstar powered cadillac owners in general whats your opnion on these cars? What should I look for tomorow are they known for leaking anything from anywhere? And last thing is how do I check for any codes,what buttons do I have to press? thanks for any help guys.