Check the listing for details. BG CF5 Fuel System Treatment. Condition: New. Listed at 19.54 USD. BG CF5 Fuel System Treatment Our eBay Store About Us Contact Us Add to Favorite Sellers BG CF5 Fuel System Treatment 19.54 BG CF5® gasoline supplement is a unique, high-tech formulation designed to provide deposit control throughout the life of the engine. Added to vehicle fuel tank every 5,000 miles, BG CF5® will keep intake manifolds, intake ports, intake valves and combustion chambers clean and free of damaging deposits. Maintains "like-new" engine performance. It prevents rust and corrosion and provides long-term storage stability. Protects against the harmful effects of ethanol. One 11 oz. can treats 15 gallons (57 Liters) of fuel. Catalytic converter and oxygen sensor safe. Warning: This product contains chemicals known to the state of California to cause cancer and birth defects or other reproductive harm. Product Details