Results 1 to 5 of 5

Thread: First Oil Thread...heh

  1. #1
    K Bikes Complex by Choice cjack's Avatar
    Join Date
    Apr 2003
    Location
    Urbana, IL
    Posts
    3,673

    First Oil Thread...heh

    Ok. The first oil thread on the new K bikes here...heh.
    BMW has said from the beginning on the '05 K12S not to use 20W anything. Only 10W40 or 15W40. Then with the '08 book, they recommend 10WX.
    I kind of wanted to use BMW 15W50, but have reconsidered and think I will stick with the 10W40 BMW or Amsoil. Both are JASO-MA good for wet clutches.
    I have heard of a couple of actual dry plates in the clutch pack upon dissassembly. And some dealers modifying the oil holes in the clutch basket to allow more oil to pass thru. Not sure about that of course, but it makes me want to stick with the 10W40 all year around.
    My other bike is a BMW.
    Jack Hawley MOA and RA #224, KE9UW ("Chuck")

  2. #2
    K Bikes Complex by Choice cjack's Avatar
    Join Date
    Apr 2003
    Location
    Urbana, IL
    Posts
    3,673
    BMW has now come out with a synth 15W40 which satisfies the owner book requirements for hot weather JASO-MA and all that. About $11 per quart.
    My other bike is a BMW.
    Jack Hawley MOA and RA #224, KE9UW ("Chuck")

  3. #3
    Registered User
    Join Date
    Dec 2004
    Location
    Winnebago, Il
    Posts
    678
    Does BMW recommend using full synthetic with their wet clutch design? Just curious since my brother has an 08 wing and dealer said using full synthetic would reduce the clutch life.

    Roy
    Roy G.
    85 K100RT Ol Ruby "Gone but not forgotten"

    02 K1200LTC Hoss

  4. #4
    K Bikes Complex by Choice cjack's Avatar
    Join Date
    Apr 2003
    Location
    Urbana, IL
    Posts
    3,673
    They do, after the obligatory 6K miles. I've long thought that the synth oil is just oil that has longer lasting viscosity, etc. Maybe more antiacids. Flows easier when very cold. But while it flows easier against itself, it's not like it behaves like moly or anything as far as parts go against themselves. But I've always started using it when/if the oil consumption is minimum or zero (like all of my K bikes for the last 22 years).
    My other bike is a BMW.
    Jack Hawley MOA and RA #224, KE9UW ("Chuck")

  5. #5
    Registered User
    Join Date
    Dec 2004
    Location
    Winnebago, Il
    Posts
    678
    Thanks for the reply Jack.
    My last wet clutch bike was an 82 GS650 Suzuki. From memory the owners manual stated to never to use any oil additives but in 82 synthetics probably were not real popular.

    Ride safe

    Roy
    Roy G.
    85 K100RT Ol Ruby "Gone but not forgotten"

    02 K1200LTC Hoss

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •