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- From: larryf@hpnmdla.sr.hp.com (Larry Ferreira)
- Newsgroups: rec.autos.tech
- Subject: Re: Gold Spark Plugs
- Message-ID: <4170090@hpnmdla.sr.hp.com>
- Date: 14 Oct 92 21:43:17 GMT
- References: <1992Oct14.153510.25746@galileo.cc.rochester.edu>
- Organization: Hewlett-Packard, Santa Rosa, CA
- Lines: 32
-
- In rec.autos.tech, awds_ltd@uhura.cc.rochester.edu (ClarkKent) writes:
-
- > We've hear about Bosch Platinum plugs-
- > I was looking at a auto parts store's sales brochure and
- > saw Champion Gold plugs. I sure they're not solid gold, nor that
- > much more expensive than platinum. Gold's a great conductor, right?
- > Any thoughts on these?
-
- Actually gold is *relatively* a poor conductor.
-
- Here a list of some conductors:
-
- Material Resistivity, ohm/centimeter
-
- Aluminum 2.83x10^-6
- Carbon 3.50x10^-3
- Copper,(pure) 1.70x10^-6
- Gold 2.44x10^-6
- Platium 1.00x10^-5
- Silver 1.63x10^-6
-
- Note: The smaller the number, the better the conductor; therefore Silver
- is the best conductor in the list, and Carbon is the least. However,
- Gold is better than Platium. The main advantage of Gold is that
- it doesn't tarnish. Not sure what that buys you, when it comes to
- sparkplugs.
-
- Anybody ever seen silver plugs?
-
- > Adam Edwards
-
- Larry Ferreira
-