synthetic engine break in

Discussion in 'Mechanic and Repair' started by causalitist, May 19, 2007.

  1. causalitist

    causalitist LawnSite Senior Member
    Posts: 610

    i got a new 15hp kawi .. im running dino for the break in.. when do you guys switch to synthetic? (those that do)

    it says change oil after initial 8 hours.. im imagining most of the break in is done by then.

    those of you that use synthetic oil, how many hours u let it break in on dino first?
     
  2. khouse

    khouse LawnSite Bronze Member
    Posts: 1,465

    I would run it 50 hours before switching
     
  3. lawnspecialties

    lawnspecialties LawnSite Silver Member
    Posts: 2,513

    I go synthetic the first change (Mobil 1 15W-50). Usually right around first 8-12 hours. :)
     
  4. causalitist

    causalitist LawnSite Senior Member
    Posts: 610

    unless anyone has more input, i think i will go right in between both of what you guys said .. like 25 hours.
     
  5. Bill Kapaun

    Bill Kapaun LawnSite Senior Member
    Posts: 915

    I'm of the theory that if the rings need to be seated, why do engines run so nice when brand new? I don't see them smoking either?
     
  6. khouse

    khouse LawnSite Bronze Member
    Posts: 1,465

    50 hours is the normal hours for an oil change. But I sometimes wonder why Mercedes,Lexus and other high end cars come with synthetic oil from the factory?
     
  7. causalitist

    causalitist LawnSite Senior Member
    Posts: 610

    ya but i wouldnt doubt those engines are broken in in the factory,, at least like for a good hour.. i could see them doing this with a vette or something.
     

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