RE: Basic Glow plug questions?
If you run out of fuel at a fairly high rpm it can kill the glow plugs, it usually don't if it is idling. I run an OS #8 in my LRP spec 3.
[link=http://www.misbehavin-rc.com/pit-lane/glow-plugs/gn-plugchart.asp]Here[/link] is some good glow plug info and a chart comparing glow plugs.