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Old 13th February 2012, 07:11 PM
BenzBoy BenzBoy is offline
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Join Date: Feb 2008
Location: Sydney - Centre of Civilisation
Posts: 6,468
Default Refresher course in reading spark plugs.

You can ignore the comments on lead unless you have an old 44 gallon drum of the good stuff left over...
http://www.ngksparkplugs.com/tech_su...qs/faqread.asp
Regards,
Brian
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