Quote:
Originally Posted by 90503
I too believe this is an area of concern. What I find interesting is how GM instructs what appears to be an incorrect way to break in the engine, as recommending the wrong type of oil! This is amazing and horrible if found to be true.
If so, I don't see how the outcome could be anything but a future class-action lawsuit, and/or a massive recall.
My experience so far, no catch can, only one oil change, no noticeable oil use...First car that's ever had full synthetic...I always believed full synthetic was somewhat of a gimmick to increase rated mpg, and that "regular" oil was perfectly acceptable as a substitute. I was also under the impression that engines these days were already "pretested/broken in" to some degree on the bench before assembly. Perhaps not.
Keeping my finger crossed and hoping for the best!! Thanks
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On mine uses dexos semi synthetic. I was told by service manager to leave in for 3000 miles as it did have extra breakin addatives from the factory and wanted to get best use of them. Changed to Mobil1 synthetic and all is good.