New owner R69S

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schrader7032
Posts: 7238
Joined: Fri Oct 27, 2006 3:00 am

New owner R69S

Post by schrader7032 »

Oh, boy, an oil thread! 20w50 or 10w30 doesn't sound right for a transmission. My aftermarket Clymer says to use 90W hypoid gear oil throughout the drive train, 80W in the tranny in the winter. Personally, I would use a good quality 80w90 hypoid gear oil, GL5 rated. There's been some discussion about the need for a GL4 rated oil but I don't really see that as a problem. Possibly for an early model R69S...I have a '69 model.

A copy of an owner's manual says to use 40W oil. But beginning with frame number 663565, use 90W hypoid oil. Same for drive shaft. For final drive, use 90W from frame 661445 on.

Kurt in S.A.
Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

Chris Wilcox
Posts: 1
Joined: Tue May 30, 2006 4:30 pm

New owner R69S

Post by Chris Wilcox »

My R69S is # 665360. I think the year is 1969. Thanks for your input.

Chris

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VBMWMO
Posts: 1322
Joined: Sun Aug 23, 2009 7:49 pm

New owner R69S

Post by VBMWMO »

I've read that synthetic oil will extend the life of the transmission in my R69S. The previous owner was using Castrol 20 w 50, the owners manuel said to use 10 w 30. Also, how about the drive shaft and bevel drive oil? Thanks for any advice you can give me.

Chris Wilcox
Hampstead, NC.
cbwilcox@charter.net
Dedicated to the Preservation of Classic and Antique BMW Motorcycles.

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