GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat (https://www.gmforum.com/)

- Performance, Brainstorming & Tuning (https://www.gmforum.com/performance-brainstorming-tuning-96/)

- - platinum or copper? (https://www.gmforum.com/performance-brainstorming-tuning-96/platinum-copper-203301/)

macho_mike21

06-16-2004 10:16 PM

platinum or copper?

which spark plug is best for my engine? Any brands but Bosch work, dont they?

macho_mike21

06-17-2004 06:19 PM

dont everyone respond at once...

Damemorder

06-17-2004 06:34 PM

platnum is a no-no.

big_news_1

06-17-2004 07:11 PM

why is platinum a no-no? i just put bosch platinum+2's in Bonnie and she's doing ok so far. what did i miss?

willwren

06-17-2004 07:15 PM

Platinum is fine for a non-supercharged car.

My suggestion would be for an L27 or L36, Copper, Patinum, or Irridium.

For an L67, Copper or Irridium.

Bosch has a very low life-expectancy in our cars. That's true for both plugs and O2 sensors. They're fine in some applications, but just not ours for some reason.

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