Q&A

I've had my 2006 Chrysler 300 for about 6 months and noticed
it burning oil occasionally when under stress (driving up decent hills while trying to accelerate) or when rounding
a turn and accelerating out of it at a decent speed.
First crack was to replace the PCV valve, but two weeks
after that I'm seeing the problem again, less frequently
but under the same conditions as before.
Any ideas? Do I need a "heavy duty" PCV valve?
Only 67000 miles on the engine. Any suggestions for diagnosis?