Fuel Injection Air-Intake Cleaner is scientifically formulated to safely clean away varnish, carbon, dirt and road grime that builds up in computer-controlled air-intake systems. When these components are dirty, air does not flow by and mix properly with the fuel causing rough idle, poor fuel economy and increased emissions. After cleaning, Fuel Injection, Throttle Body & Air-Intake Cleaner lubricates the butterfly and all moving parts and leaves behind anti-corrosion protection. Oxygen sensor and catalytic converter safe. Use every 3,000 miles.
