I just want to clarify something with all this stuff about Rotella T6 being JASO-MA "certified".
It's my understanding that it isn't JASO-MA certified. A JASO-MA "certified" oil has undergone the testing to be allowed to display the certificate on the bottle like what Motul has.
This is the JASO-MA certificate and I believe it's present on some 'motorcycle oils' such as Motul et al.:
Rotella T6 does not have this. They have the API certificate (round stamp on the right) but that's it as far as "certifications" go.
So I guess you could say that people wouldn't use it becuase it is not JASO-MA certified.
Fair enough, the manufacturer "claims" it meet JASO-MA, however this has not been certified. At the end of the day, the manufacturer can "claim" anything they want, right?
At the end of the day, it is a good oil and does seem suitable for motorcycles as plenty of oil analysis' have shown. All I'm trying to do here is to cut through the hype and get to the facts regarding oils that "meet a particular standard" as opposed to oils that "are certified and have undergone certification".
I'm not trying to dump on this product. It's a great product. But you don't just say "it's certified" becuase it isn't. Just like a guy in a white coat in a hospital isn't a "certified" doctor without the proper certificate even though he might have the knowledge to provide you with medical care.
Oh, and FYI I'm not drumming up business for motorcycle oils. Personally, I use Delo 400 15W/40 Multigrade in my 1050 Speed Triple and in my TTR250 dirtbike