Induction cleaning using alternate layers of a first chemistry and a second chemistry

In a method of removing carbon build up from an internal combustion engine;

• the engine including an induction system, combustion chambers, and exhaust system;
• the method including using the air flow inherent in the induction system while the engine is running;
• the method including means for delivering two chemical compositions of matter, each having a different formulation, into the induction system;
• the method including:
• while the engine is running applying a layer of the first chemical composition of matter to the induction system for a first period of time, wherein the layer of the first chemical composition of matter constitutes a first layer, and wherein the first time period constitutes a first stage, whereby the first chemical composition of matter will remove a portion of the carbon build up based on its formulation;
• while the engine is still running applying a layer of the second chemical composition of matter to the induction system for a second period of time, wherein the layer of the second chemical composition of matter constitutes a second layer, and wherein the second period of time constitutes a second stage, whereby during the second stage the second composition of matter will remove a different portion of the carbon build up based on its formulation, wherein the first stage and the second stage constitute a cycle;
• and
• while the engine is still running repeating the cycle at least once.