Thread: plug#
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Old 09-22-2000, 09:01 PM
Benzmac Benzmac is offline
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
We use the H9DC's. The work great. I think the difference is in the center electrode design. I have seen no advantages in ANY special spark plug design for daily use.

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