When to switch to synthetic?

Discussion in 'Oil' started by UltraNew09, Aug 16, 2011.

  1. UltraNew09

    UltraNew09 Member

    38
    0
    0
    My Ultra has 7000 miles on it now, at 10,000 Id like to switch the primary and crankcase and tranny to synthectic. My questions is that to many miles to switch or what? Ive read alot of people switched when it was brandnew, but I assume it wont hurt any thing to switch at 10,000 miles?
     
  2. glider

    glider Veteran Member

    25,464
    108
    44
    No harm at all doing it at 10K.
     
  3. UltraNew09

    UltraNew09 Member

    38
    0
    0
    I didn't think so, but figured Id ask. Thanks Glider. I plan on Amsoil 20w50 in crankcase, not sure on primary, spectro 6 speed for tranns.
     
  4. glider

    glider Veteran Member

    25,464
    108
    44
    Harleys Formula+ does a good job in the primary.
     
  5. oldhippie

    oldhippie Senior Member

    1,072
    58
    19

    For the primary any of these will also do:
    Spectro Heavy Duty Primary Chaincase oil
    Redline V-Twin Primary Chaincase Oil (same as MTL 70W80 gear oil just repackaged)
    Mobil1 V-Twin 20W50

    For the naysayers about using synthetic in the primary: my Ultra has just over 16,000 miles on it now. Just completed a short 5000 mile ride riding 2-up while pulling a trailer. This included what could have passed for a 1+ mile slow race uphill on the "riding to the sun" road over Logan Pass. I NEVER experienced any clutch slippage.

    Maybe when I rack up alot more miles I'll get some slippage. But by then I suspect I'll be due for a clutch anyway.
     
    Last edited: Aug 16, 2011
  6. glider

    glider Veteran Member

    25,464
    108
    44

    oldhippie

    I'm one of the "naysayers" that say not to use a synthetic in the primary and 16K is just broken in. When using a synthetic oil in the primary, the problem arises when some serious miles are put on the clutch pack. When a dino oil use would show a lot more useful miles, the synthetic will tend to slip.:s
     
  7. oldhippie

    oldhippie Senior Member

    1,072
    58
    19
    Yeah, I know you are.:D I'll just keep doing what I'm doing 'til I prove you right.:lolrolling
     
  8. UltraNew09

    UltraNew09 Member

    38
    0
    0
    Thanks for all the replies. My plan is Amsoil 20w50 in motor, Formula+ in primary, Spectro 6 speed in trans.
     
  9. glider

    glider Veteran Member

    25,464
    108
    44
    Way to go! :D

    Perfect combination IMO.
     
  10. Cleftwynd

    Cleftwynd Banned

    119
    0
    0
    Does this mean you are now looking for an Amsoil salesman Glider? :lolrolling