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Tranny Oil

 
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Ragman
Mad Brick Rider


Joined: 26 Mar 2008
Posts: 97

PostPosted: Sat Mar 20, 2010 12:37 am    Post subject: Tranny Oil Reply with quote

I'm switching over to synthetic oil in the tranny and rear drive.

Thinking about Amsoil.

Hanson's BMW recommends I use 85/140 in the tranny and 75/90 in the rear drive.

What say you guys?

Ragman
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"When injustice becomes law, resistance becomes duty."
~Thomas Jefferson

1995 K1100LT
1980 Hadley Giggleson FLHC
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Phil Marvin
Rider in the Sky


Joined: 03 Apr 2003
Posts: 1389
Location: El Paso, Texas, USA

PostPosted: Sat Mar 20, 2010 3:02 am    Post subject: Reply with quote

Hi, Ragman,
The trannys are pretty bulletproof and seem to work fine (even a bit better) with 75w140. With the problems BMW has had with their final drives, though, I try to stick with what was specified - 90wt GL5 hypoid oil, in the final drive. Since I can't find 90wt, I use Castrol Hypoy 80w90 GL5, conventional gear oil.
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Phil Marvin in El Paso, TX
'94 K75A/3
'95 K75RTP
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Turbine
Brick Rider


Joined: 16 Jul 2007
Posts: 46
Location: South Australia

PostPosted: Sun Mar 21, 2010 7:48 am    Post subject: Amsoil use Reply with quote

In my K100RS I used it from 10,000 to 135,000.No problems due to the oil. Changed every year.
The K1100RS have done the same again from 10 to 100.
Always clean & can not remember the last time I had to top up if any.
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