Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# PIP-4574M.
Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
BUICK/CHEVROLET/GMC/PONTIAC/SAAB: EXCESSIVE OIL CONSUMPTION AND/OR BLUE EXHAUST SMOKE-INVESTIGATION UPDATE. IN MOST CASES DID NOT START UNTIL THE ENGINE ACCUMULATED APPROXIMATELY 30,000 MILES OR MORE. *PE
