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  1. #1
    Junior Member kimo2u's Avatar
    Join Date
    Apr 2012
    Posts
    4

    Which oil should I use?

    I have a 1999 F150 5.4 4X4 with 166313 miles on it. The recommend oil is 5-30w. Should use a synthetic, high mileage or conventional motor oil and which brand.

  2. #2
    Chief Moderator Jersey_Joe's Avatar
    Join Date
    Jul 2012
    Name
    Joey
    Location
    New Jersey
    Posts
    19,016
    Mobile 1 high mileage Synthetic is a preference. Some people will say yas. Some people will say no. Me on the other hand I am yes man. I prefer Synthetic oils. But mobile 1 and zmax. Google that ish. Good stuff

  3. #3
    Junior Member
    Join Date
    Sep 2012
    Posts
    7
    Stick with Motorcraft oil filter anti drain back valve is essential to all Ford motors and could always use a synthetic blend

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