An online PDF of the owner's manual for the Suzuki DL650 VStrom, model year unknown. Check your bike's owner's manual for verification and any model year changes or updates.
Page 48 of this PDF shows the JASO (Japanese Automobile Standards Organization) certification mark, the box with the MA in it.
Page 49 of this PDF shows the API (American Petroleum Institute) certification mark, the "donut".
These are the certification marks issued by these organizations to motor oil manufacturers who have put their oils through the certification/licensing process of each organization. No certification mark on the bottle, no certification sought or given, just claims that their oil "meets the performance requirements of..." (as seen on that Rotella bottle), but without actually being put through the process of certification. That Rotella bottle, there is no actual JASO MA certification mark on it; this tells me JASO has not certified Rotella to meet the requirements of an oil used in a Japanese 4-stroke, wet clutch motorcycle engine. Shell just states this Rotella meets the performance requirements of JASO MA/MA2 without actually having it certified as such by JASO. Same as the Amsoil I just put in my bike. (Note that Rotella bottle's API donut only has a certification for diesel engine use, CK-4, which supersedes previous diesel certifications, it does not certify for gasoline engines at all, the "S" classifications, nor the JASO classifications.)
Here is a bit of info about the JASO MA standards-
I came across another reference (that I now can't find... went through so many in the past while) that API no longer certifies motor oil for motorcycle use, not since back in the SF or SG days (if that is what I actually found...), and those API classifications are now obsolete, you won't find API donut marks on the retailer shelf with those obsolete "S" classifications. API Engine Oil Classification
I'm learning new stuff this evening... What I am finding as I sit here looking is that regardless of oil brand, mineral or synthetic, viscosity weight, API designation, and everything else, is that for a motorcycle engine built by any of the Japanese manufacturers that utilizes a wet clutch that shares its lubricant with the engine, the oil that you should be looking for will be certified and properly labeled to meet JASO MA (MA, MA1, MA2, or some combination), just like our owner's manual states. Whether you choose an oil that simply states (i.e. claims) it meets the JASO MA standards (like the Amsoil I used, or the Rotella some of you used, etc.), or if the bottle is actually marked with the JASO certification mark which (I guess) guarantees that the oil meets the JASO requirements, that is up to you. I'm not here to debate, I'm only putting forth the information that Suzuki and the oil manufacturers and marketers provide to us. We just need to know how to properly read and interpret that information, to separate claims from facts.