I first noticed the Ruthenium a year or so ago. As far as I can tell it is just another precious metal with very similar physical properties to Platinum and Iridium.
Biggest difference though is ... PRICE
Current prices in US dollars per ounce:
Platinum: $969
Iridium: $1495
Ruthenium: $255
So I can see why NGK, etc. would rather use the Ruthenium if it is just as good, and maybe better.
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2001 X5 3.0i, 203k miles, AT, owned since 2014
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