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Author Topic: Oil/transmission leak?  (Read 2402 times)

Offline Barry

  • Mt. Olympus Resident
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  • Posts: 5145
Re: Oil/transmission leak?
« Reply #15 on: November 21, 2010, 03:13:51 PM »
Quote
Is all hypoid 80w oil the same? Reason I ask is that I have gallons of Yamaha Outboard marine gear oil that seems to be the same. Is this ok?  

If the oil is GL5 spec I would think it might have been OK except it's a bit thin for your neck of the woods.  BMW recommends 80W below 41 deg F. and 90W for above or 80W90 year round.

The approx viscosity for gear oils at 40 deg C:

80W        98 cSt

80W90    140 cSt

90W        200 cSt

« Last Edit: November 21, 2010, 03:34:47 PM by bhodgson »
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Barry Cheshire, England 79 R45

unibober

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Re: Oil/transmission leak?
« Reply #16 on: November 21, 2010, 03:47:47 PM »
Well, I do have a few gallons of Suzuki 80w-90 that is GL5 rated and I think it will be ok until next summer when it starts to get hot and even then it should be fine.  Next is new Dyna coil and rear fender. Not so keen on the big silly one on now. :P
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