Originally posted by Kpack
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Norm
SM | Introduced on 30 November 2004 | Category SM oils are designed to provide improved oxidation resistance, improved deposit protection, better wear protection, and better low-temperature performance over the life of the oil. Some SM oils may also meet the latest ILSAC specification and/or qualify as Energy Conserving. They may be used where API Service Category SJ and SL earlier categories are recommended. http://www.oilspecifications.org/api_eolcs.php |
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