Dan wrote:

> 2. Replaced a used PCV valve. (almost 2 yr ago from yunk yard).

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PCV that's stuck open will suck your oil out invisibly, and burn it in
the combustion chamber. An OEM Honda PCV isn't that expensive. If it's
the cause, you've probably paid for a new one twenty times over. A bad
thermostat could have hacked up your rings too, if left uncorrected for
too long. Engine has a 'sweet spot' for temperature. When you operate
outside that (or let your car warm up in winter) you increase wear
dramatically.

'Curly'