My '02 Z06 burns about a quart every 1K miles or so. Every 'Vette forum that I've been on says it's not unusual for the LS6 to do this. I never have blue smoke gurgling out of my exhaust. Am I concerned about it? Given the specs on this particular motor, the track record from other owners, the non-existence of blue vapors and the fact that I bought an extended warranty, no.
But I'd still like to know how a motor can burn that much
oil without giving any indication visually that it's doing so. Also, no leaks either.
-Dean