Cadillac STS Forum - 2005 through 2012 Discussion, What signs do i need to be on the look out for when it comes to my GM 3.6 engine oil? in Past Cadillac Vehicle Discussion; What are all the important signs i need to be aware of for the GM 3.6 engine oil in my ...
Automobile(s): White Diamond 06 STS V8 RWD 1SF F55 HUD/ACC NAV - 147k
Re: What signs do i need to be on the look out for when it comes to my GM 3.6 engine
Just check it regularly, get a good handle on how much it goes through, if any. You may never have an issue at all, but just be aware that the 3.6 is known for using oil causing premature timing chain wear.
Do some reading over in the 1st Gen CTS forum, TONS of information over there regarding this issue. Also, you could try reaching out to a member on here from FL, SC2150. He works with a company that has done significant work on the 3.6L LY7 engine and I'm sure he could give you a better idea as to what to expect and measures you can take to prevent it.