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Old 02-10-2012, 05:08 PM   #11
Dgc333
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Quote:
Originally Posted by jjzx2sr View Post
Autolite copper core, copper conducts better than platinum, platinum merely wears better.
FWIW, Copper is only used in the core of the center electrode. The tip is another metal such as tungsten, platinum, iridium, etc. If you buy an Autolite platinum plug it will have a copper core.
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Old 02-10-2012, 05:15 PM   #12
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Thank you. AutoliteŽDouble PlatinumSpark Plugs

Technology

•High Nickel Chrome Alloy Side Electrode
•Full platinum tips
•Necked-down center electrode
•Full Copper Core Center Electrode

While copper is a good conductor, it would quickly be eroded or melted in a combustion chamber.
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