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Unread 05-21-2013, 08:35 PM   #1
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2012 WK 
Join Date: Aug 2006
Location: St. Paul, Minnesota
Posts: 21
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, 09:37 PM   #2
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2015 WK 
Join Date: May 2012
Location: Edgewater, NJ
Posts: 518
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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2015 WK2 Limited 4x4
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