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Koots · 12-09-2015, 03:05 AM

Welcome! I'm pretty new here too but also new to Oldmobiles (it's my first).

As for ecotec oil usage issues, I know that GM decided to replace their conventional PCV valve with a fixed orifice design built into the engine (most commonly the valve cover). That's about all I know and oil burning issues are still a problem with this new design (even worse in some cases than before).

I'd search ecotec oil burning and see what the cavvy/cobalt guys have figured out. If it was me, I'd be looking into cleaning it out if possible. might help with some issues.

12-09-2015, 03:05 AM	#3
Koots GX Member Join Date: Nov 2015 Location: Goose Bay, Labrador Posts: 40	Welcome! I'm pretty new here too but also new to Oldmobiles (it's my first). As for ecotec oil usage issues, I know that GM decided to replace their conventional PCV valve with a fixed orifice design built into the engine (most commonly the valve cover). That's about all I know and oil burning issues are still a problem with this new design (even worse in some cases than before). I'd search ecotec oil burning and see what the cavvy/cobalt guys have figured out. If it was me, I'd be looking into cleaning it out if possible. might help with some issues. __________________ 1999 Alero GL Sedan - 3400/4T45E -HP Tuners custom tune in the works -Hopefully much more in the works besides maintenance.