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Follower scar oil tests

Discussion in 'Norton Commando Motorcycles (Classic)' started by comnoz, Aug 21, 2018.

  1. bushman

    bushman

    Joined:
    Jan 27, 2015
    Hello Jim, thanks so much for the oil test work - it is very enlightening.
    I have question about LIQUI MOLY oils, specifically 20w50 4T Motorcycle oil - have you run a test on that?
    Would be interested to find out as it seems to be gaining popularity here as a high end product.
    Thanks
    JIM
     
  2. comnoz

    comnoz VIP MEMBER

    Joined:
    Dec 10, 2008
    I have not tested that oil, but I suspect the "HD synth 20-50 Street" would be suitable as it is designed for Harley Davidson air cooled twins.

    The 4T is for a late model OHC and would not likely be suitable for a Norton.
     
  3. slimslowslider

    slimslowslider

    Joined:
    Jun 29, 2010
    Thank you, Jim, for all the effort you have put into this.
    Here in Holland, Valvoline VR1 Racing 10W60 full synth is available.
    I do not see it tested, any idea where this oil type roughly would compare to?
    Thanks, Bennie.
     
  4. comnoz

    comnoz VIP MEMBER

    Joined:
    Dec 10, 2008
    I tested the 20-50 Full Synthetic. It was low friction but it did not carry much load before failure. I would not use it in a Norton.

    The VR1 20-50 conventional carried much more load but it oxidized quickly. It would be good with frequent oil changes.

    I did not test the 10W60 full Synthetic but I suspect the results would be about the same as the 20-50 Full Synthetic.
     
  5. worntorn

    worntorn

    Joined:
    Dec 22, 2006
    I've used the VR1 conventional for 60,000 miles in a Vincent and changed it frequently.
    The bore wear at 60,000 was barely measureable, just 1 thou of total taper.
    The high heat from friction might be a good thing for that engine. Stockish Vincents take forever to warm the oil to operating temps and seem to just run a lot cooler than the Norton engine.

    Glen
     
  6. Onder

    Onder

    Joined:
    May 11, 2010
    How frequent is frequently?
     
  7. comnoz

    comnoz VIP MEMBER

    Joined:
    Dec 10, 2008
    That depends on how it's used. Cool weather, lower speeds ect. make for lower oil temps and slower oxidation.

    1000 miles in my bike, in hot weather, at interstate speed will turn VR1 into something like tar.

    If it's black, change it.
     
  8. worntorn

    worntorn

    Joined:
    Dec 22, 2006
    About every 2000 miles in the Vincent.

    Glen
     
  9. slimslowslider

    slimslowslider

    Joined:
    Jun 29, 2010
    Thanks Jim.
    Regards, Bennie.
     
  10. comnoz

    comnoz VIP MEMBER

    Joined:
    Dec 10, 2008
    Your welcome.
    Are you coming back over for a rally sometime? Jim
     
  11. slimslowslider

    slimslowslider

    Joined:
    Jun 29, 2010
    Who knows, Jim, would love to, 2011 rally and USA trip was great.
    I retire in February, so more time on hands then.
    But, to be honest, the "dot on the horizon" is a trip to South America, of course with a Commando.
    Cheers, Bennie.
     
    comnoz likes this.
  12. Roadnwater

    Roadnwater

    Joined:
    Jan 14, 2020
    I cannot find the chart of the results although it is mentioned that it is in the first post. Could someone point me in the right direction. Great project and thanks.
     
  13. DevonNorton

    DevonNorton VIP MEMBER

    Joined:
    May 7, 2015
  14. trident sam

    trident sam

    Joined:
    Oct 23, 2012
    Go back to the Forum heading page, the first one is Norton Commando Motorcycles Classic. At the bottom of this section is the oil database
     
  15. Roadnwater

    Roadnwater

    Joined:
    Jan 14, 2020
    Thanks guys.
     

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