Oil Suggestions For Harleys

Discussion in 'Sportster Models' started by copman250, Apr 18, 2010.

  1. copman250

    copman250 New Member

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    i have a 79 sportster ironhead 4 speed and i need to know what type of oil to use and the viscosity...thanks
     
  2. Jack Klarich

    Jack Klarich Expert Member

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    I would run 50 or 60 H D in that one
     
  3. copman250

    copman250 New Member

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    if im not mistakin the primary case, engine and trans use the same oil in these ironheads correct?