I know that this may seem obvious to some, but I am wondering how some of the more effective fuel system treatments (Amsoil PI, Red Line SI-1, etc.) remove valve and combustion chamber deposits? Here are the possibilities that I can think of:
1) They cause the temperature in the combustion chambers to increase to the point that deposits burn up.
2) They slowly break up deposits and small amounts of the deposits burn up during normal combustion until all deposits are basically gone.
3) They break up deposits quickly and it takes a little while for the material to burn up, so some material either remains in the combustion chamber or catalytic converter until it burns up.
1) They cause the temperature in the combustion chambers to increase to the point that deposits burn up.
2) They slowly break up deposits and small amounts of the deposits burn up during normal combustion until all deposits are basically gone.
3) They break up deposits quickly and it takes a little while for the material to burn up, so some material either remains in the combustion chamber or catalytic converter until it burns up.