Quote:
Originally Posted by Briland_1LE
How do you know that GM didn’t design the engine to burn a minuscule amount of oil for lubrication? Everyone assumes that because the catch can caught oil it’s saving their engine yet its normal for an engine to burn a small bit of oil. Its known that many engines consume oil as part of normal operation including porsche engines. The makers of the engine oil know this and that’s probably why chevy recommends dexos oil is it has additives to keep the valves etc clean and lubricated.
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Sounds like Microsoft renaming bugs they can't resolve "features".
Any unmetered air/fuel/other going into a combustion chamber is not desirable. Modern 4-stroke synthetic oil is not made to cleanly combust and will result in soot/ash/carbon on your valves. Venting the PCV to the atmosphere would be best for your engine, but not the environment, so a closed loop catch-can is a good compromise.