Carbon does not announce itself. It shows up as a hesitation off idle, a hard start on a cold morning, or a failed emissions test you were not expecting. This is a pour-in treatment that works through the fuel system and out through the converter, cleaning the injectors, oxygen sensors and cylinder heads on the way.

Cataclean 120017 Fuel and Exhaust System Cleaner Features:

• Safe for gasoline, diesel and hybrid engines.
• Cleans the catalytic converter, oxygen sensors, fuel injectors and cylinder heads.
• Reduces carbon build-up.
• Does not alter fuel composition.
• Testing at an independent emissions testing facility showed it can lower total hydrocarbon emissions. Results depend on driver habits and vehicle condition.
• Helps with drivability issues such as power reduction, hesitation and hard starts, and can be used as a pre-treatment before an emissions test.
• Long nose bottle is compatible with capless gas tanks.
• Use four times a year to help maintain engine operation and catalytic converter efficiency.
• 16 oz. bottle, sold individually.