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Old 03-28-2002, 10:26 PM
Posts: n/a
It's probably being cooked in the catalytic converter. My guess is that you're due for a valve job. Don't let it go too long or you'll be buying a new cat too. My 300E was doing the same thing. Just had new guides and seals installed....switched to Mobil 1 and doesn't use or leak a drop (126K mi).
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