Thread: Sparks?????
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wjfk32 wjfk32 is offline
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OK-SPARK-PLUG GURUS-

Does the thickness or larger insulator/porcelain matter??? After comparing my old ngks-r56-7 to denso 4033. The insulator part of the ngks was not as thick. Side by side the the denso looked more heavy duty. INMOP.
What do u think???
1ST one denso-w24esr-u

2ND NGK-R5671A-8

Last edited by wjfk32; 08-17-2011 at 11:37 AM..
Old 08-17-2011, 11:30 AM
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