At The Local Bike Shop Yesterday

Discussion in 'Oil' started by SteveGleckner, May 1, 2016.

  1. SteveGleckner

    SteveGleckner Member

    15
    11
    0
    Hi,

    I was talking with the mechanic at a local bike shop yesterday. He told me not to run synthetic oil in a Harley motor. His argument is it is too slippery for roller type bearings. The oil is so slippery that the rolling elements can skid and damage the bearings. He tells me he has repaired many motors where the bearings were damaged by using synthetic oil.

    He tells me synthetic is great for babbitt (shell type) type bearings but not for rollers. Is this guy just blowing smoke or does he have a point. I know lots of people use synthetic oil so there should be some evidence for it being good or bad.

    I don't want to start any arguments over oil but would like to know what others have heard.

    Thanks;

    Steve
     
  2. dbmg

    dbmg Experienced Member

    5,800
    153
    318
    I hope that you are not letting this guy work on your Steed now are you??????????????:confused:
     
    Jeff Klarich and HDDon like this.
  3. Harttoo

    Harttoo Senior Member

    1,113
    68
    80
    Nonsense!!:rolleyes:
     
    Jeff Klarich and HDDon like this.
  4. Jack Klarich

    Jack Klarich Expert Member

    18,544
    153
    399
    Pure baloney, if that were so many Harleys would have blown up and several oil companies would be bankrupt including the makers of HD Syn 3
     
    Jeff Klarich and HDDon like this.
  5. Jack Klarich

    Jack Klarich Expert Member

    18,544
    153
    399
    Jeff Klarich and HDDon like this.
  6. HDDon

    HDDon Experienced Member Contributor Retired Moderators

    5,456
    133
    196
    I have to agree with everyone except your mechanic. I guess with his logic all the new cars should not be using it either. You would be doing the dealership a favor if you passed this along to the service manager and the owner.
     
    Jeff Klarich and Jack Klarich like this.
  7. Jeff Klarich

    Jeff Klarich Well-Known Member Contributor

    3,601
    103
    296
    If he is your mechanic i'd be looking for a new one.
     
    HDDon and Jack Klarich like this.
  8. Breeze3at

    Breeze3at Well-Known Member

    4,645
    83
    124
    I've always asked the synthetic oil naysayers, if synthetic oil is sooo slippery that bearings skid, how do they get damaged? They will skid until eternity, or until you run out of oil. Never had a good answer. o_O