I've never been happy with platinum plugs. The best behaviour I've gotten
from my cars has been with Bosch Supers, W7DTC. It's a copper core triple
electrode plug, and works nicely in my Rootes motors. Of course, I also use
a Bosch supercoil, so there's a little more spark available.
Jon Arzt
>From: Thomas Wiencek <wiencek@anl.gov>
>Reply-To: Thomas Wiencek <wiencek@anl.gov>
>To: Message Alpine <alpines@autox.team.net>
>Subject: No Alpine Content-Platinum Tipped Spark Plugs
>Date: 05 Dec 00 09:09:25 -0600
>
>Does anyone have any long term experience with the platinum spark plugs? I
>always hear they last 100K miles. I had a set in my "normal" car and after
>50K miles the tips were worn about 0.020 in. into the ceramic and there was
>a crater about 1/2 the thickness of the electrode (the grounded part).
>Needless to say the car was missing a lot.
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