Oil filter O-ring already greased, still need to wet with oil or not?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by 2009Prius, Apr 23, 2010.

  1. 2009Prius

    2009Prius A Wimpy DIYer

    Joined:
    Mar 25, 2009
    2,705
    511
    63
    Location:
    USA
    Vehicle:
    2009 Prius
    In John1701a's oil change instruction he advised to wet the O-ring of the new oil filter to help seal it well. However the filter I got from the dealer already has grease on the O-ring. In this case is it still necessary to wet the O-ring with oil before installing?
     
    #1 2009Prius, Apr 23, 2010
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
    18,200
    6,497
    0
    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    I do not bother, since as you pointed out the gasket already has lube applied.
     
    #2 Patrick Wong, Apr 23, 2010
    1 person likes this.
  3. john1701a

    john1701a Prius Guru

    Joined:
    Jan 6, 2004
    12,802
    5,286
    57
    Location:
    Minnesota
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    Remember what Jamie's motto is from MythBusters: "If in doubt, lube it."

    In this case... If it's pre-greased, it's fine already. If it's dry, a little oil will do the trick.
    .
     
    #3 john1701a, Apr 23, 2010
    1 person likes this.
(You must log in or sign up to post here.)