Thanks for all the helpful answers.
To answer the above question.
By the way what color is the oil? and what glow fuel are you using? if the oil on your plane is dark gray it could still be running too lean!
The color of the oil is roughly the same color as the glow fuel. It is Wildcat Fuel 10% Nitro 18% Oil [link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXA298]Link to fuel[/link]