>
>>Note that the other Amsoil products, while they cannot be API certified
>>due to the ZDDP level, do use synthetic base stock. Don't use them in
>>vehicles with catalytic converters, despite what your local MLM person
>>may tell you. Mobil 1 EP does use synthetic base stock.
>
>They have no effect on catalytic converters. I have no idea where you
>came up with that one.
Sure do - that's why they've been removed from current automotive spec oil. At least that's the official line.
Got proof?
Empirical proof? No.And I'm not going to go looking for citations just to satisfy you,but the automotive industry has been saying so for several years. As a mechanic I know how touchy a 3 way catalyst can be, and how expensive. I'm not going to use an older spec (high zinc/phospourous) oil in the Mystique and risk $2000 worth of catalytic converters.
So you don't have any proof, how conveiniant
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