As I understand it, ZDDP anti-wear/anti-oxidant performance is dependent upon its constituent alkyl chains (I am ignoring aryl chains). I have been trying to purchase a ZDDP additive for research purposes but so far find that manufactures do not detail the exact ZDDP or mixture of ZDDPs present in their product.
How drastically does the chain structure alter the additive's performance?
Are there specific ZDDPs that are commonly used?
In a ZDDP mixture, how does one decide upon the ratios of the components?
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