Change interval for primary and transmission oil

Discussion in 'General Harley Davidson Topic' started by Jim B., Jul 23, 2009.

  1. Jim B.

    Jim B. Junior Member

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    I know there are multiple threads about when to change one's oil but I don't remember any threads about when to change the primary and gear oils. I just had the 5,000 mile servicing and put in Spectro primary and gear oils. Now I'm wondering when to change them out. Thanks.
     
    Last edited: Jul 23, 2009
  2. eludac

    eludac Member

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    I think that the best is to change primary oil when you change engine oil
     
  3. glider

    glider Veteran Member

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    It's only around one quart except for the newer bikes and gets pretty dirty from the clutch. I change it with the engine oil.