Mr. Bonk,

Thanks for the information. All of that explains a lot of my questions. I never really paid much attention to what glow plugs I had or bought, usually when I went to the local hobby shop I told them I needed a glow plug for a certain engine and never gave it much thought as to what type it was. Really just knew that the name of the plug meant more or less money in my pocket! And to be honest I never really saw any difference in plugs.

Thanks again,
Chris