Hey guys need to know what to look for before buying a 1998 STS. It has high miles (135k) but it's listed at a good/affordable price. If i take the car to a mechanic to check for the notorious head gasket problem will I be assured that I won't have a costly repair down the road, or atleast in the near future? Let me know what to look for so that I can get in this beautiful caddy and call it mine, without any headaches. Thanks for the help!