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Transmission/Final Drive question

Discussion in 'Cal 1400 8V' started by Hydrolastic, Sep 3, 2020.

  1. Hydrolastic

    Hydrolastic Tuned and Synch'ed GT Contributor

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    I have done a search and have not come up with anything conclusive here. Does anyone here know why Guzzi changed from recommending GL-5 oil in the final drive to GL-4 in the Cal 1400? I have confirmed this spec in both the user manual and service manual. Usually this is due to materials used and reaction to the EP additives, but it would be the first time I have seen a higher rating in the gearbox vs. the final drive.

    Dave
     
  2. kiwi dave

    kiwi dave GT Reference

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    I use Redline Shockproof Heavy full synthetic in both.
     
  3. Moto-Uno

    Moto-Uno Cruisin' Guzzisti

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  4. kiwi dave

    kiwi dave GT Reference

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    I wasn't asking any questions, but just stating what I have used for years.

    I did read the link, but I'm not convinced I should change my thinking.
     
  5. Hydrolastic

    Hydrolastic Tuned and Synch'ed GT Contributor

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    kiwi dave - I was the one asking the question.

    Peter - thanks for the link.

    Dave
     
  6. kiwi dave

    kiwi dave GT Reference

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    Then let me ask a question. Why is the tin foil brigade not willing to embrace synthetic oils, when it has been proven to be far superior to dinosaur oils?
     
  7. Moto-Uno

    Moto-Uno Cruisin' Guzzisti

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    You'll have to excuse me , but what is the "tin foil brigade" , don't believe I've ever mentioned that syn oils aren't great .
    Does anyone here have evidence of a modern oil (dino or syn ) that is directly responsible for a gearbox or rear drive
    box failure ( assuming suggested change intervals ) ? Nor I :) . Peter
     

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