Well... I'm going to be the Guinea Pig here. I purchased an Oil Catch Can and will install it on my wife's 2008 Prius to see if it helps with keeping oil out of the intake, which dirties it along with the catalytic converter. She burns about 1 quart every 1,200 miles. I'm also doing a top end clean on it to try to free up the oil rings as I suspect they have a bunch of burned oil/carbon on them making them stick. I'll report back in a month or two with my findings.
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