Denso Iridium Spark Plugs

TM t44tq at
Thu Feb 13 23:56:01 EST 2003

Reports from the s-car list are that the Densos are no good- you
should stick with the F5DPOR. Don't use those cheap Bosch Platinums


-----Original Message-----
From: 200q20v-admin at [mailto:200q20v-admin at] On
Behalf Of Hays Zeigler
Sent: Thursday, February 13, 2003 9:25 PM
To: 200q20v at
Subject: Denso Iridium Spark Plugs

Has anyone tried the Denso Iridium spark plugs.  The Denso IK22 is
supposed to be a heat range, etc. match for the standard Bosch F5DPOR.
Is it as good, or better?  Longevity? Any experience out there?

I've read some bad reports about replacing the F5DPOR with the Bosch

Hays Zeigler
1991 20V

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