Oil changed, 149,942
Drained oil looked good but didn’t seem like 5qt (I didn’t check before drain, and operator refuses to check oil regularly even on the known consumption issue historically with the Equinox), lots of sludge in oil filter, certainly stirred up from timing chain job. Should have done a change sooner than 4500 miles apparently,
Operator reported a loud startup recently. Sounded like chain chatter either from VVT or tensioners.
Lotsa codes behind that MIL. We’ll see what come back. None returned immediately and startup much quieter.
Readiness shows O2 issues.
Notable that GM engine management shows 53% oil life remaining. No wonder this thing was full of sludge.
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