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Originally Posted by blue2000s
Platinum is used on spark plug electrodes to extend the service life of the plug. Platinum reduces electrode vaporization over conventional materials therefore increasing the number of firings before the ignition system can no longer support a sufficient spark. There is certainly a difference.
Having said that, there are also differences in the quality of any manufacturer's plug. By using OEM plugs, you are ensuring that the plug you use has been tested to perform to Porsche's specificaions, actually operates within the correct heat range, and will hopefully be manufactured a high quality standard.
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Hi,
Agreed on the extended service. But, most Platinum Plugs are marketed as a Performance enhancer which they certainly are not.
Platinum may extend the service life, but on a Performance Car you shouldn't be looking for that at all.
There are many reasons a Spark Plug can fail such as cracked electrodes or arcing and considering that they are perhaps the cheapest item to replace, especially on a Porsche, you should change your plugs every 25k mi. or 2 years whichever comes first. Stick with the OEM to preserve the proper
indexing (something most don't consider or even know about).
Not doing so won't make the engine explode, but you should take the opportunity to inspect the CoilPak and the Sparkplugs and their Tubes and 'O' rings long before the 30k or 60k mi. intervals spec'd. Since you're already there so far as changing them is concerned, it's most practical to do so then. Fresh Plugs will aid in gaining max performance and max MPG, so the payback's there as well...
Happy Motoring!... Jim'99
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