[morepowerjoe]

Originally Posted by TheBrightSide

I didn’t feel anything blowing out of the oil filler cap area. I can double check, once I get my car running again tonight or tomorrow. I assumed that my engine valley cover and gasket for it, were okay and still somewhat “new”, so I didn’t bother to take my intake manifold, harness, coil packs, and fuel rail off, to check.

How else would I be getting oil blow-by, if nothing so far indicates like a solid cause..? My oil level also isn’t dropping like crazy, as I mentioned; although I guess a month with moderate to hard driving like once a week or few times a week, would probably need at least half a quart or more to top off within a month.

Does the PCV system under the LS3 engine valley cover, have malfunctions, that can cause blow-by, similar to the way the early 2010 L99 and other GM V8 engines (with DOD/AFM), had faulty drive side valve covers (which allowed the PCV to let oil blow-by occur).

I think your next step would be a compression test.