I have a 2000 Cadillac STS with the GM specially made Northstar V8 in it. It currently has just over 150k on it, and has had regular maintenance, including oil chances with synthetic oil every 3-5 thousand miles. I was just curious as to how many miles more i can get out of it?

Air Conditioning problem 1995 Cadillac STS V8 Two Wheel Drive Automatic 33000 miles How do you replace heater fan? Need instructions. Thank you in advance for your cooperation. Charles Parker