Gold Spark plug
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Spark plug.
These spark plugs, now discontinued, were made with a gold-palladium alloy center electrode. Some people swear by them, other people swear at them. In any case, the company (Champion) replaced them with a platinum version.
Here's an interesting article about different elements in spark plugs.
Source: eBay seller drsusphd
Contributor: Theodore Gray
Acquired: 10 January, 2003
Text Updated: 11 August, 2007
Price: $8/4
Size: 3"
Purity: <50%
Sample Group: Spark Plugs