>>>*The key here is the "Brown" part. This is the sign of an engine that has been using some oil for quite awhile. The exhaust system soots up, and the force of the exhaust at higher RPM blows loose some of the carbon, which will be brown with some blue, oil color, mixed in..
*Yep, rings.....*EB


*Beats the he** outa me!....*LOL**...