Sure Dallara - here are the numbers:Dallara said:I have read Amsoil's motorcycle oil "White Paper" several times over the years, and though I can appreciate Amsoil dealers/distributors, etc. trotting out the four-ball test whenever they want to promote Amsoil products I personally don't agree that it is the single most important criteria in judging overall performance in a motorcycle oil. That's doesn't mean "I'm right and you're wrong", just that I don't think we agree on what each of us may want in our motorcycle oil.
Since I don't want to turn this into another typical internet "oil thread" let's just leave it at that, shall we?
Getting back to my original question... Do you have specific numbers for the nominal PPM for zinc and phosphorus in your motorcycle oils? What kind of nominal PPM difference is there between your 10w-40 and 20w-50? I would hope you would have those numbers...
And no, the "measurement of key ingredients" is not my only, or even my primary, criteria for determining the oil I use. Zinc and phosphorus levels are just one I like to look at, and since you are wearing a "Vendor" hat in this thread I thought you would know the chemical component and "key ingredient" levels of your product.
Thanks!
Dallara
~
10W-40 Zinc: 1417 ppm Phosphorus: 1206 ppm
20W-50 Zinc: 1434 ppm Phosphorus: 1221 ppm
I will also mention that I don't hang my hat completely on the four ball wear test - there are several other test that are important to look at such as Shear Stability, Rust Prevention Characteristics, Foaming resistance, Total base number and others... you get the idea. Basically my opinion is it the actual performance that matters in each category - not the differences in additives between manufacturers. We can talk complex chemistry, but at the end of the day - we're all looking for the same thing: What Oil will give me the results I desire? That's why we focus so much on measuring results rather than comparing things such as a spectrographic analysis...
Good luck with your research!