Page 1 of 2 12 LastLast
Results 1 to 10 of 19

Thread: Preferred Oil

  1. #1
    Junior Member VIC
    Join Date
    Apr 2018
    Location
    Frankston South
    Posts
    12

    Preferred Oil

    GíDay all,
    Just about to do an oil change on my GSX750S 1983, and I got to thinking, I was wondering what your oil preference is for your Kat?

    Iíve use semi-synthetic Castrol GPS 10W-40.

    Cheers, Bill

  2. #2
    Senior Member NSW Tomcat's Avatar
    Join Date
    Jan 2015
    Location
    Sydney's Northern Beaches
    Posts
    1,616
    Have used Penrite MC-4ST ( 10-50W ) since rebuild 5 years ago and have been very happy.

    Plan to use same in 1100 'basket cas' once rebuilt

    Tomcar

  3. #3
    Penrite HPR diesel 15
    HKSI


    "But what would I know, I cant even diagnose a vacuum leak"

  4. #4
    Administrator QLD
    Join Date
    Oct 2014
    Location
    Keperra, Queensland
    Posts
    3,716
    Same as John, been using it in the wee beastie for years and now use it in the Kat also. I wait until the 10L drums are on sale at Supercheap, and you can usually get them for about $66 or so which is much better value than the regular nearly $50 for 5L.
    1984 Katana 7/11 - done at last! https://www.suzuki-katana.net/member...0-My-First-Kat

    1982 GS450E - not quite stock

  5. #5
    Penrite MC-4 10W40 100% PAO ESTER in the 1100 (changed annually), 9.8 TBN, high ZDDP, contains boron, shear stable. Penrite 10W40 Full-Synthetic (Group III) for the 650G-spot (changed every 10K and needs top ups).
    Darryl in E27-land


  6. #6
    Senior Member WA ThomasJ's Avatar
    Join Date
    Oct 2014
    Location
    Golden Bay WA
    Posts
    1,556
    Penrite MC-4ST ( 10-50W ) on some and Valvoline XLD on the sidecar as it has a firm gearbox
    Preservation over restoration - they are only original once

  7. #7
    Senior Member QLD muddy's Avatar
    Join Date
    Jun 2016
    Location
    Sunshine Coast
    Posts
    402
    Quote Originally Posted by darkside View Post
    Penrite HPR diesel 15
    Sorry, but I gotta ask - why? Is it adequate and cheap or are there other reasons?

  8. #8
    I have used Castrol GTX in my 1100 since '83 and she is still going strong.
    There is my opinion and then there is wrong!

  9. #9
    Its just oil, no matter what you use keep it clean thatís all that matters...

    I use diesel oil because
    - no friction modifiers is fine for wet clutches
    - mineral based semi synthetic blend so you get some of that high tech custom molecule wear prevention with out costing the earth.
    - Has a Zinc additive to help keep the metal bits apart
    - 15 - 50 suits QLD High temp range better than 40W and yet not too thick in our winter (bit more of that semi-syn advantage)
    - Its a whole fleet oil, I buy it in drums and use it for the diesel Triton, and the muti-valve petrols like the wifeís Capiva the Son`s Laser because its cheaper that way.

    So more than adequate and cheap.
    HKSI


    "But what would I know, I cant even diagnose a vacuum leak"

  10. #10
    Moderator QLD drillit's Avatar
    Join Date
    Oct 2014
    Location
    Northside, Brisbane, closer to BRENDALE than the Darkside
    Posts
    1,416
    Quote Originally Posted by darkside View Post
    Its just oil, no matter what you use keep it clean that’s all that matters...

    I use diesel oil because
    - no friction modifiers is fine for wet clutches
    - mineral based semi synthetic blend so you get some of that high tech custom molecule wear prevention with out costing the earth.
    - Has a Zinc additive to help keep the metal bits apart
    - 15 - 50 suits QLD High temp range better than 40W and yet not too thick in our winter (bit more of that semi-syn advantage)
    - Its a whole fleet oil, I buy it in drums and use it for the diesel Triton, and the muti-valve petrols like the wife’s Capiva the Son`s Laser because its cheaper that way.

    So more than adequate and cheap.
    ......yes - but what oil would you use if you had a Bathurst Kat?

Posting Permissions

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