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Old 07-02-2009, 05:10 PM
Slartibartfast Slartibartfast is offline
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Join Date: May 2008
Location: Bobcaygeon, Ontario
Posts: 24
in most warm weather situations, 15W40 is called for. I like the Shell and Motorcraft myself. My truck sees winter, and doesn't get run very hard, so I run Motorcraft 10W30 (CJ4) all year. Seems to start easier with lighter oil.
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