Millions of cars today run at a considerably reduced level of efficiency, due to the high concentration of carbon deposits accumulated in the fuel injection system, intake valves, combustion chambers, oxygen sensor and catalytic converter. Carbon build-up clogs fuel filters, reduces fuel flow, distorts fuel spray patterns, limits fuel automation and decreases combustion efficiency. Carbon build-up gradually robs your vehicle of performance and fuel economy, and may cause numerous problems such as engine malfunction, high emissions, excessive fuel consumption, loss of performance, rough idling and hard starts.