4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Quick Oil Question..

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Old Oct 3, 2008 | 04:11 PM
  #11  
defconfire's Avatar
defconfire
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Joined: Mar 2007
Posts: 3,791
From: Cary/Charlotte, NC
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The later ones 01+ "recommends" 5w-20.

I think next time i am going to run 10w-30 because i have leaky valve guide seals, maybe that'll help.
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