Bruce Nunnally Posted January 20, 2004 Report Share Posted January 20, 2004 OK, the manual/warranty info on the new 2004 CTS actual says just change the oil whenever the oil life monitor says. The CTS gets Mobil 1 as a factory fill. My inclination is to follow the manual (!), but of course one reads all the time how it's better to change at 3k no matter. BUT, on the third hand, I have read of some engines that actually did WORSE if the oil was changed too soon -- that they did not wear in as well? Anyone think the manual's advice to follow the oil life indicator is bad? Bruce 2016 Cadillac ATS-V gray/black Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
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