Thread: Best Oil for SOCH 4.0V6?
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Old 10-09-2011, 10:39 PM
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pawpaw
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The Ford oil spec# change is from API SM/GF-4, to SN/GF-5. The 4.0L engines are to still use 5W-30. Oil filter change was for space/clearance reasons as I understand it.
 
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