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Originally Posted by UVETTYA
I should have added... point me to the site and I'll check it out for myself.  |
PM'd you a link.
You're questions aren't easy to answer and I'm certainly not an oil expert so I hesitate to give authoritative answers.
I don't know what you mean by dissolved particles other than what is in the above analysis. All of those numbers are ppm of that substance in the oil.
The engine wear numbers are usually based on the iron, copper and lead ppm numbers and all of the above samples show very little engine wear.
I don't think too many guys have taken their engine's apart to determine wear (other than some extreme example like the 409k mile test I showed you). But with the above numbers, such as 2-3 ppm aluminum in all the above samples, there is not enough metal in the oil to indicate there is any measureable wear.
For anti-wear additives, this from AMSOIL's website (note this is AMSOIL's philosophy, other oils approach wear differently):
"Engine oils typically use antiwear (AW) additives to prevent metal-to-metal contact within an engine. These are commonly zinc and phosphorus compounds (zinc dithiophosphate or ZDP). These additives are different from EP additives because they activate or bond with metal surfaces at lower temperatures and pressures and do not form corrosive acids. EP additives are intended to withstand higher pressures and temperatures than found in engines. AW additives offer more than enough protection for all engine conditions without any of the harmful side effects of EP additives.
AMSOIL INC. has always used higher quality and a higher level of additives including zinc and phosphorus than most motor oils on the market."
You can see from all the above sample how high the zinc and phosphorus numbers are which substantiate that AMSOIL does in fact put large amounts of these AW additives in their oil.
