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Engine oil trans oil

Discussion in 'Norton Motorcycles (Modern)' started by Kid Thunder, Nov 6, 2018.

  1. Kid Thunder

    Kid Thunder

    Joined:
    Sep 30, 2018
    Is the primary oil engine oil or transmission oil? Lost here.
     
  2. richard-7

    richard-7

    Joined:
    Feb 24, 2014
    Same oil. Just separated. See my manuals on oil changes.
     
  3. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    The Primary is fed by the Trans oil . Or better put , when you fill your trans you are also filling the primary. The oil flows between both trans and primary.
     
  4. Kid Thunder

    Kid Thunder

    Joined:
    Sep 30, 2018
    Thanks Tony! That was the answer I was looking for. Most of my bikes have engine/trans oil mixed together. My buddy's HD has a different primary & trans oil.
    Older Nortons have a separate trans with it's own oil. Correct?
     
  5. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Yes for sure. The Vintage Commando has a separate trans lube , separate primary and separate engine oil
     
  6. otyc

    otyc

    Joined:
    Oct 2, 2018
    "Same oil. Just separated. See my manuals on oil changes." richard-7 says. TonyA has an other opinion. What's the true?
     
  7. Rob Jameson - Norton UK

    Rob Jameson - Norton UK

    Joined:
    Apr 9, 2018
    The oil in both engine and gearbox is the same specification and grade, it is just in separate compartments so need to be drained and refilled independently (but at the same time).
     
  8. otyc

    otyc

    Joined:
    Oct 2, 2018
    Thank you, Rob. Based on Norton original manual I understood it so.