15W-50 instead of 10W-40?

[ragtoplvr]

requesting an oil sample, and having a UV additive added at the factory are still quite a ways off from a "viscosity checker" (if such a thing even exists at the repair shop level of operation).
i'm still awaiting some kind of factual confirmation before i take that original "viscosity checker- believe it" statement off of the BS pile.

I would assume in the case in question, the factory had a oil test including viscosity correctly performed. Had something been amiss, they would have denied warranty. I doubt if a simple viscosity check would hold up in court. In the case I know of, about 2 days later they approved warranty work.

[pffog]

I'm pretty sure that all bikes produced after 1500 hours, Central European Time on June 12, 2008 have a SAT based transponder onboard that will transmit the weight of oil you are using directly to the OPS Zenter at the mother company's HQ in Stugart. If you use the improper oil they will send a Telex informing you that your warranty "ist kaput". The system also detects oil levels that fall .001 microns below dead-center in the window, tires that are more than .25 PSI over or under the BMW directed pressures and the condition of your final drive. This later function allows BMW Zentral to send you a letter denying your warranty claim for the FD and blaming the failure on your use of poor fuel and improper braking techniques. It is not uncommon for these letters to reach an owner before he/she is even aware of a FD issue. Believe that!!!

How did I miss this, oh yea, I was in the French Alps riding, not worrying about oil.

But that said, I cant pass up the opportunity the facts above open up for me. I am starting a new venture. For the mere price of $19.95 plus S&H I want to offer a kit that essentially blocks these transmissions, thus assuring you that big BrotherMW, will never know that you prefer running grandma's castor oil in the motor and final drive.

Grandma always said castor oil was the best stuff you could use to smooth out your exhaust from your final drive areas, and she lived past 100!

The kit contains everything you see below, with detailed installation instructions.

[105258]

You are not required to use BMW oil, omly oil that meets the correst viscosity and grades. There are many good quality oils that do this for less money.

[ClassicVW]

The oil chart in my owner's manual for my '11 RT shows a couple of different weights recommended for what I feel is within some small variations in temperature. So, I go into my dealer and only said to the parts conter person- "I need BMW oil for my 2011 RT" to see what he would recommend. He opened the page on the computer screen and said: "WHOA! They sure have a few choices- like 5! What do you want to use?"

So much for expert advice or a definitive answer.

Bottom line is oil is good, no oil is no good.

[EMSimon]

Yes, but.....

[David13]

I don't think it really matters much. At least, for certain, in the short run.
I just put the 15w 50 in my RT today. It's now sold under the Spectra name.
dc

[chewbacca]

Ask the BMW dealer-

You will Void your Warranty!!!


All dealers have a viscosity checker if you use the incorrect weight oil they will know right away.

Believe it!!!

It's your bike you need to do what is best should not hurt the engine.

You REALY believe that ???? Do you think the dealers are the Warranty Police??? This may sound crazy but there is a helluva lot more to that 15w50 or 10w40 rating than flow rate (viscosity). Right out of the can, this wondrous dealer viscosity meter very well may not measure what the viscosity rating on the can says. It's way more complicated than that. Then comes the point that BMW has to prove that such a minor difference in oil actually was the cause of the damage. In the USA you can't do a blanket revoking of warranty for just anything the dealer feels like. Last but not least, those are recommendations not Commandments.

[t6pilot]

Castrol power RS racing 4t
10-50 meets JASO MA2 API SL
Buy the case from motorcycle superstores