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- Aug 9, 2022
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The current online owners manuals for the JK Wrangler 3.6L recommend 5W30 for the 2012 model year, and 5W20 or 5W30 for the 2013-2018 model year. All internal engine part numbers and oil clearances are the same from 2012-2018.
2012 Jeep Wrangler Owner Manual (mopar.com)
2015 Jeep Wrangler Owner's Manual (mopar.com)
2012 Jeep Wrangler Owner Manual (mopar.com)
2015 Jeep Wrangler Owner's Manual (mopar.com)
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