chuyrobles

OP, most effective way to remove any current carbon buildup is to remove the heads to clean the chambers and valves. To prevent further buildup, use quality gas and/or fuel cleaners like Techron. The most effective measure is installing the aforementioned oil catch can.

Edit note: you could use a borescope to view current carbon buildup. But not much you can do about it … short of removing the heads. Chris Fix did have some success with on the shelf chemicals.

kingofire

Even if Amsoil make one, BG is the way to go.

jgscott

iTrader: (1)

Most best is to deter the build up, and not let it get build up.