Kevin,
I had the same question so I asked the AMSOIL Tech Service for some help. Since AMSOIL recommends it for this application, they will warranty if a part fails due to their recommendation. The AMSOIL MCV oil has the following cold weather typical properties:
CCS Viscosity (ASTM D2602)
5609 @ -15°C
Pour Point °C (°F) (ASTM D-97)
-39 (-38)
AMSOIL 10W40 MCF motorcycle oil has these values:
CCS Viscosity (ASTM D2602)
6794 @ -25°C
Pour Point °C (°F) (ASTM D-97)
-46 (-51)
Probably not an issue unless you start your BMW with an oil temperature below -15C, or if the engine turns over too slow. Might just be a BMW marketing ploy to buy their oil?
I'd be interested in the BMW 15W50 numbers if anyone has them. I don't think I've seen any of their typical property data.
Original Message-----
From: Anderson, Dave
Sent: Monday, August 15, 2005 2:17 PM
To: Mail TechService
Subject: RE: Technical Service Contact Form
Thank you for contacting AMSOIL with your concerns.
In response to your inquiry, we would highly recommend the use of the AMSOIL 20W-50 MCV motorcycle oil in the new BMW models K1200S and K1200ST.
Thank you again for the opportunity to respond to your concerns. As always, please feel free to contact us again if we can be of further assistance.
Sincerely.
David Anderson
Technical Product Manager
AMSOIL Inc.
Every attempt has been made to ensure that the information provided in this e-mail correspondence is accurate and reliable. However, AMSOIL INC. makes no warranty guarantee or promise (expressed or implied) concerning the accuracy of our e-mail response, as it is based solely on the information provided to us by the e-mail originator.
-----Original Message-----
From: Mail TechService
Sent: Monday, August 15, 2005 11:41 AM
To: Anderson, Dave
Subject: FW: Technical Service Contact Form
-----Original Message-----
From: Tim Vipond [mailto:
[email protected]]
Sent: Saturday, August 13, 2005 6:43 AM
To: Mail TechService
Subject: Technical Service Contact Form
Below are the results of your feedback form.
Date: Saturday, August 13, 2005 at 06:42:49
Sponsor ZO: none
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Name
Name
Tim Vipond
Email
[email protected]
Comments
My BMW dealer says that BMW has issued a service bulletin saying only a 10W50 oil is to be used in the new K1200S and K1200ST motorcycles. Has AMSOIL 10W40 or 20W50 been approved for this application?