Final Drive Fluid Change - BMW K1600 Forum : BMW K1600 GT and GTL Forums
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post #1 of 93 Old 05-23-2011, 05:15 PM Thread Starter
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Final Drive Fluid Change

The fische callas for: FINAL-DRIVE GEAR OIL SAF-XO - OSP, 1000ML (LITRE)

Online, I see this description: OSP,TANKWAG. Synthetic final-drive oil (SAF-XO) for final drives without Multi-disc limited-slip differential and without EH limited- Slip differential, and for final drives with viscous limited- Slip differential.

Here is the Castrol info page: http://www.ge39.com/files/SAF_XO_SAF_XJ_B1174_96.pdf

Here is the Amsoil alternative: http://www.amsoil.com/storefront/svg.aspx

It looks easy enough to change myself. However, it appears that the rear wheel must be removed to easily get to the refill plug.

What I don't know is what is required maintenance for the Gore-Tex vent filter? Maybe nothing.

Since only a small 200cc volume of GL-5 gear lube is used, I think I will be changing more often than required.
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post #2 of 93 Old 05-24-2011, 08:57 AM
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$47.83 for the rear drive fluid? Is that correct?
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post #3 of 93 Old 05-24-2011, 10:10 AM Thread Starter
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Quote:
Originally Posted by behrler View Post
$47.83 for the rear drive fluid? Is that correct?
Well, yes. That's why I added the link to the $14.25 (retail) for the top rated Amsoil gear lube.

I want to change the final drive fluid more often than the manual calls for, so I will stock-up on more Amsoil. But then, I use the same in my differentials and transfer case of my daily driver too.

I'm thankful that BMW made it appear to be much easier to change the final drive fluid, as compared to my 2007 R1200GSA.
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post #4 of 93 Old 05-25-2011, 05:17 PM
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Is there a reason why there is almost a $30.00 difference if the two oils are really the same?

Do they really both spec out the same?
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post #5 of 93 Old 05-25-2011, 06:00 PM Thread Starter
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Originally Posted by DanDiver View Post
Do they really both spec out the same?
I linked the specs to each of these API GL-5 synthetic gear lubes above. In reality, reading the test results, Amsoil tests better than the Castrol oil BMW uses.

Here is an Amsoil gear lube study: http://www.amsoil.com/lit/g2457.pdf
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post #6 of 93 Old 06-01-2011, 12:32 PM Thread Starter
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200cc or 0.2 liters

Seems crazy to pay $47 for a liter and only use 1/5 the volume. I'll be taking the better rated Amsoil in for my 600 mile service.
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post #7 of 93 Old 06-01-2011, 12:42 PM
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I guess you'd want to be sure it doesn't affect the warranty?
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post #8 of 93 Old 06-01-2011, 12:47 PM Thread Starter
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I guess you'd want to be sure it doesn't affect the warranty?
Settled issue in the US, as long as the standards are met, the warranty is unaffected.

http://www.amsoil.com/news/2008_worr...warranties.pdf

If you are interested in using AMSOIL motor oil, but concerned that using a synthetic oil or extending your oil drain interval will void his warranty, you have no need for concern. Congress in 1975 enacted the federal Magnuson-Moss Act to regulate written consumer product warranties. An examination of the law reveals warranties remain intact when AMSOIL Synthetic Lubricants are used.

The law was meant to give consumers detailed information about warranty coverage before they buy.

Congress charged the Federal Trade Commission with creation of the specifics of the law.

The FTC set down three rules under the Act: the Disclosure Rule, the Pre-Sale Availability Rule and the Dispute Resolution Rule.

Those rules require warrantors to title their written warranty as either full or limited, provide a single, clear and easy-to-read document that spells out certain information about coverage and ensure that warranties are available where the products are sold so that consumers can read them before buying.

In passing the Act, Congress meant to give consumers access to warranty information, let consumers comparison shop for warranties, encourage warranty competition and promote timely and complete performance of warranty obligations.

While the Magnuson-Moss Act does not require manufacturers to provide a written warranty, it provides specific rules when one is provided. Among those provisions, FTC regulations state: (c) No warrantor of a consumer product may condition his written or implied warranty of such product on the consumers using, in connection with such product, any article or service (other than article or service provided without charge under the terms of the warranty) which is identified by brand, trade, or corporate name; except that the prohibition of this subsection may be waived by the Commission if (1) the warrantor satisfies the Commission that the warranted product will function properly only if the article or service so identified is used in connection with the warranted product, and (2) the Commission finds that such a waiver is in the public interest. (15 U.S.C.2302(C))

That means your warranty stands when you use AMSOIL Synthetic Lubricants.

Vehicle manufacturers recommend lubricants according to their viscosity grade and service classification. Any oil, whether it's conventional petroleum motor oil or synthetic, meeting the correct viscosity grade, 5W-30 for example, and the current API and ILSAC North American service classifications may be used without affecting warranty coverage. AMSOIL motor oils are recommended for use in applications requiring these specifications.

Furthermore, the practice of extending oil drain intervals does not void warranties. Original equipment manufacturers pay or deny warranty claims based on the findings of failure analysis. To affect the vehicle warranty, the lubricant must be directly responsible for the failure. If the oil didn't cause the problem the warranty cannot be voided, regardless of brand or length of time in use.

Synthetic motor oil was introduced to the automotive public in 1972 by AMSOIL, INC., with the world's first API rated synthetic motor oil specially formulated for long service and superior performance and protection to that of conventional oils.

Nearly 40 years ago, AMSOIL synthetics represented a vision of the future and technology ahead of their time. Since then, every major engine oil manufacturer has introduced synthetic oils of their own. To be sure, many original equipment manufacturers would like you to believe you can only use their products. However, it's a violation of the consumer protections set forth in the Magnuson-Moss Act, unless they're willing to provide you those products free of charge.

AMSOIL offers a warranty that covers the cost of repair or replacement of a proven mechanically sound engine damaged as a result of using AMSOIL synthetic motor oil.

AMSOIL further backs its products with action when a Dealer or customer reports being told their warranty is voided if they use synthetics.

If you have heard from any member of a business that the use of AMSOIL Motor Oil or the practice of extending drain intervals will void warranties, send AMSOIL all the details including the name of the business, business owner or manager and the individual making the claims, in a signed and dated letter. Send the letter to the Technical Services Department at corporate headquarters and an AMSOIL representative will send them a letter explaining the facts.

Access to the complete Magnuson-Moss Act is available on the Internet by key words Magnuson-Moss Act or Federal Trade Commission.
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post #9 of 93 Old 06-02-2011, 02:44 AM
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Thanks, that seems very clear for the USA at least.
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post #10 of 93 Old 06-15-2011, 03:38 PM Thread Starter
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Here are the photos from the 1st final drive oil change.

180cc per BMW mechanic.

20 NM torque for both plugs.

Mechanic says the magnetic drain plug always has fuzz on it. We will see if that changes with Amsoil Shock Proof Gear Lube.

Slid rear tire out without messing with exhaust. Tight fit but works just fine.

The bottle comes from a hair salon store and is used for applying hair color. Measurements on bottle make getting the volume easy. Refill is a snap with this bottle.

O-rings on plugs, so no new washers or o-rings were used.
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