89 Evo FLHTCU and oil change

Discussion in 'Oil' started by dvndogbagger, Aug 17, 2010.

  1. dvndogbagger

    dvndogbagger Member

    So after some extensive reading I was wandering if that year of motor can take the synthetic oils like M1 20-50W or should I stick with regular?

    Also I want to change the other fluids as well and found that I to sometimes have trouble finding neutral when the motor is warm, is there a suggested oil for the trans for that year as well?

    Any help appreciated
  2. Breeze3at

    Breeze3at Well-Known Member

    I have a '92 Evo that I have changed back and forth a couple of times between syn. and dino. 60 + k miles and still all original bearings except lifters.
    I have used Bell Ray, Mobil 1 and Amsoil gear lube 75w90 and 75w140. They all seemed to work good with just the usual Harley clunks.
    I use whatever quality dino oil I have on the shelf in the primary, 30w, 10w30 or 20w50. Difficulty finding neutral may be a clutch adjustment issue.
  3. Jack Klarich

    Jack Klarich Guest

    Check the self help section for clutch adjustment and do it on a cold bike:s