After 38 years in the oil and additives business, I know for an absolute certainty that there is a pronounced difference between oils and additives designed for the many different types of diesel engines and oils and additives for gasoline engines - along with hundreds of specialty applications. *Every* oil manufacturer spends millions of dollars formulating their oils to specific, demanding tasks. Are they wasting their time branding specialty oil and additives, according to bob?
An "oil analysis" on an internet site is not going to change my mind! And some post on some other site by some nameless, faceless contributor - like me - should be taken with a similar pinch of salt.
Here's the mystery - I *wonder* how it could be that when we add different chemicals in different amounts from different tanks - they fail to show up in an independent analysis? The analysis that is done on a daily basis in our labs quite clearly shows the differences. Then again, we know exactly what we're looking for... and we have a vested interest in making it difficult for others to discover our 'secrets"... There's a lot of very good information on that site - but a lot of it is not accurate, or it's not being interpreted correctly. Do what you want - but be informed about it!
As to differences between manufacturers - there's only so many additives, most are very well know, most of the manufacturers use the same additives, with maybe with slight differences in amount, maybe a few extra hydrogen atoms stuck on in a different place thrown in to make it proprietary - or for 'branding." There really isn't a lot of mystery, we all analyze each other's products on a regular basis...
My main question is always Why? In this case, why would I need to use an oil designed for a diesel engine in my gasoline powered motorcycle, when comparably priced and certified compatible oils that satisfy the manufacturer's requirements are readily available? That perform the task they were designed for perfectly well? What problem am I trying to solve that makes this a proper choice - and can I (or perhaps, should I) solve that problem in a different way?
Just my opinion. I freely admit to not knowing everything. But oil I know.