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Thread: 1968 r60 fluids

  1. #1

    1968 r60 fluids

    hi not sure to use motor oil or 90w in trans,driveshaft,diff thanks

  2. #2
    Liaison 20774's Avatar
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    A 1968 /2 should have the necessary seals for gear oil. I'd use an 80w90 gear oil. The question becomes whether to use GL4 or GL5. It has been suggested that GL5 gear oils can contain high sulfur which might damage yellow metals. Vech recommends GL4. I don't subscribe to that and use GL5 in my /2.
    Kurt -- Forum Liaison ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  3. #3
    #4869 DennisDarrow's Avatar
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    i go with Vech on this one.......For an old brass gear transmission on a wheel horse, I had to find some gear oil that specified that it was safe. on the bottle it advised "Safe for Yellow Metals Gears" .....GL4........

  4. #4

    1968 r60 fluids

    is the 90w best or before the change, the 40w motor oil that was used

  5. #5
    Liaison 20774's Avatar
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    I would find a gear oil that is 80w90 rather than a straight weight.

    Here is Vech's discussion of the use of GL4:

    http://www.benchmarkworks.com/articl...h/gearoil.html

    But I come at it from a standpoint of how many /2 bikes are stranded on the side of the road due to this problem. Can't say as I've heard it is a problem. But go with what makes sense for you.
    Kurt -- Forum Liaison ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

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