Milliemax:
Looking forward to what you find. When I remove the oil fill cap with the engine running and place the palm of my hand over the opening, I can feel a definite vacuum. So I assumed the oil fill tube isn't cracked, but one never knows.
All of this started a long time ago when I used midgrade gas for several months. I've switched back to high octane and used Techron Concentrate plus for one tank. No difference. Perhaps I'll try another bottle.
Thanks
Thom
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