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Mobile 1 leak 444-544

posted by  jthorner on  Tue Nov 21 18:04 CST 2006
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last visit: Mon Jan 4 04:02 CST 2010
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"Mobil 1 is a pretty good engine cleaner, and it probably worked those gunky deposits loose and allowed your worn seal(s) to leak."

This is an often repeated theory, but I've never seen any proof of it. Rotating shaft seals do not work that way. Perhaps a flat seal like at the oil pan might get some advantage from built up residue, but I find it hard to see how this would apply to a crankshaft seal.

John





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New 1 Mobile 1 leak [444-544]
posted by  jahman  on Tue Nov 21 06:35 CST 2006 >


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