Originally Posted By: artificialist
Replace your PCV valve and PCV hoses. They may be letting oil get sucked into the intake manifold and then get burnt.
Also, taking your spark plugs out and soaking the pistons with MMO, Seafoam, or Berryman is a great idea.
just replaced my pcv at 88k but it still rattled. our spark plugs take at least 2 hours to remove.
I also like how 0w40 is running. Just wish it came in jugs!