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conventional oil

  1. 2005 - 2010 Odyssey
    Good day all, I recently inherited a 2008 Ody EX-L as my first vehicle. The vehicle has always taken 5W-20 conventional oil and has been religiously changed at 40% oil life. I want to change it to synthetic but I am not sure about the intervals. I searched here on the forums and it's still...
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