After reading some of the threads on this site, I have been led to the (I hope faulty) conclusion that, 1. The only kind of plugs that a MB will run well on are copper non-resistors; 2. Definently they wont run well on the Platinum 2 Bosch's. Okay, well, before I knew better (last year), when I realized that the 560 needed plugs, I installed a new set of Bosch Platinum 2's

. The car seems to run okay, its better than the carbon soaked Bosch Supers that were in it before, but the car is a little noisy at idle (150k miles), and I was wondering, do I need to go out and buy a set of Bosch Supers (or Copper NGK's) so it will run like a MB ought? P.S. I liked NGK, and planned on going with them in the first place, but none of the local parts stores had them in stock

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Thanks, and God Bless,
Dave.