Here ya go:
http://www2.towerhobbies.com/cgi-bin...?&I=LXG899&P=7
How about a reference on Mecoa's web page:
http://www.mecoa.com/faq/glowplug/glowplug.html
If you don't like Mecoa, maybe you'll believe OS:
http://www.osengines.com/faq/faq-q663.html
That took about 5min to find a reference to Platnum being used in a glow plug coil. I'm sure that if you actually went to some pages with real tech info on their plugs you'd get even more info.
Let me ask you this, if the plug isn't creating a catalytic reaction, then how does the engine stay running after the battery is taken off?
You can measure the compression of the engine to determine that it isn't high enough to be a pure diesel engine. Methanol would take way more pressure to fire off than typical diesel fuel, and putting a diesel head on a glow engine rasies the compression quite a bit. Putting glow fuel in a diesel engine doesn't work.