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Old 04-28-2012, 10:54 AM   #7
wilkin250r
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Join Date: Sep 2010
Location: Lake Tahoe, Nevada
Posts: 755
Re: High Mileage Oil Treatment

I'm wondering if the High Mileage oils are part of a conspiracy to get old engines off the road.

Like others have said, the additives that help "recondition" seals help for a temporary time, but they're damaging in the long run. You're basically rotting and deteriorating the seals. Yeah, they expand and soften, so they often seal better for a short time, until they fail completely.
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