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Unread 05-21-2013, 07:35 PM   #1
maureen58
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2012 WK 
 
Join Date: Aug 2006
Location: Minnesota
Posts: 15
Oil weight

I have a 2012 GC with a 3.6. The required oil weight is 5w30. But I notice with the 2013 and newer 3.6, in the GC, caravan, 300 etc., that they all require 5w20. Why the change? Fuel economy?

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Unread 05-21-2013, 08:37 PM   #2
Butterjeep
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2012 JK Wrangler 
 
Join Date: May 2012
Location: Edgewater, NJ
Posts: 496
Probably, my 12 JK asks for 5w30 but my 10 WK asks for 5w20 and it has the older 3.7
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