[gone-ot]

As yet unknown...sorta like when they took the lead out of gasoline, then discovered afterward that without the presence of lead, the valves were "sinking" into their head seats because previously the lead-oxide had acted like a "sponge-cushion" to prevent this from happening. An example of EPA's "Unintended Consquences" from not thoroughly investigating (understanding) the ramifications of their hasty mandates.

But, we *do* know that it should help prolong the life of catalytic converters, because it (suphur) is something else that they would NOT have to "burn" during their useful operating live span.