YES. PGM loadings can and do vary substantially from year-to-year, model-to-model, and even for the same vehicles of the same model, and of the same year. Despite quality control in the converter manufacturing process, it is only logical to assume that there will be variations.
Is your buyer claiming he can tell the relative amount of difference when you present him two or three apparently identical converters? Is he quoting different prices for the apparently identical converters? If so, ask him to teach how he's grading these, because you need shop the market of buyers out there to get a better price for the ones he is lowballing. You, like he, are in business to maximize your income, so of course you're going to sell to the highest bidder.
Use that line and I guarantee you'll get some very interesting, and revealing, responses.
My guess is that he is simply grading to the lowest common denominator, which buyers MUST do - remember that they are either selling to a larger buyer, or (less frequently) decanning and either selling the catalyst by the pound or getting it refined on a toll basis.
Let us know what kind of responses you get!
Best of success - Scott Andrews - Recyclebiz_com
