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patrol oil filters
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Thread: patrol oil filters

  1. #1
    Ausfish Silver Member hoga's Avatar
    Join Date
    Jun 2002

    patrol oil filters

    4.2 has two of them why hoga

  2. #2

    Re: patrol oil filters

    My 99 GU has the Ryco Z416 and Z503 filters while some later models they went to two of the same (I think) before reverting back again just recently (I think). The different filters have different pore sizes to filter more efficiently and not have just the one with small pores bog up quickly (I think).
    Cheers, Mark.

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