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Old 09-25-2013, 08:07 AM   #7
thom4782
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Join Date: Sep 2010
Location: Foster City CA
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IMS seals degrade when they get whetted with oil that contains acids and other combustion byproducts. The best strategy to slow deterioration, that is minimize it, is to keep the oil fresh and clean. Many people change oil just before storing their cars as part of this approach.
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