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Platinum Bosch 2&4 electrode Spark Plugs
Posted 18 July 2007 - 07:26 PM
Posted 18 July 2007 - 10:59 PM
Posted 29 July 2007 - 12:25 AM
Posted 07 August 2007 - 08:31 PM
Posted 09 August 2007 - 06:22 PM
The Bosch platinums (all-white center electrode) in the single ground electrode, dual ground electrode and quad ground electrode versions are virtually worthless for all applications (Subarus included). I worked at an auto parts store for over five years and in that time I can count on one hand the number of people who actually had success with Bosch platinums.
The Bosch "Super" plugs have a copper center electrode similar to a conventional spark plug and will give much the same performance. It's a standard 20K-40K mile spark plug and doesn't have any of the hyped-up crap the platinum series plugs have. Probably won't be quite as good as an NGK plug, but close.
Posted 09 August 2007 - 08:49 PM
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