Berryman B-12 Chemtool Fuel System Cleaner 15 oz Aerosol, Pack of 12 — Injector & Carburetor Cleaner

Designed for professional shops and DIY enthusiasts, this 15 oz aerosol formula (pack of 12) is formulated to work through the entire fuel system — from the tank and lines to injectors, valves, rings and pistons. It blends solvents and detergents that dissolve deposits and disperse water, helping engines run cleaner and more consistently without harming catalytic converters or oxygen sensors.

How does this product clean carburetors and injectors?

The B-12 Chemtool uses a mix of solvents and detergents to soften and remove fuel deposits like gum and varnish. As the formula circulates, it breaks loose buildup that can restrict flow or clog passages, restoring more consistent spray patterns and air-fuel delivery.

• Dissolves varnish and gum from jets, passages and injector tips.
• Disperses small amounts of water to prevent corrosion and rough running.
• Safe for use through fuel tanks, lines, and injectors when used as directed.

Will it affect the catalytic converter or oxygen sensor?

This treatment is formulated to be catalytic converter and oxygen sensor-safe when used according to label directions. It avoids heavy metallic additives and instead relies on cleaner solvents designed for modern emission systems.

• No heavy metals that typically damage catalysts.
• Recommended for gasoline engines with emission controls.
• Follow dilution and application guidelines to maintain safety.

How do I use B-12 Chemtool in everyday maintenance?

For routine care, add the recommended amount to the fuel tank or follow the aerosol application instructions for carbureted systems. Regular use at scheduled intervals reduces deposit buildup and can help maintain steady performance between professional services.

• Add to fuel tank per label ratio for system-wide cleaning.
• Use aerosol application directly on carburetor components for targeted cleaning.
• Suitable as part of periodic maintenance or before storage to remove moisture.

What performance benefits can I expect after using it?

While not a guaranteed fix for mechanical failures, B-12 Chemtool frequently improves throttle response, reduces rough idle, and supports more consistent compression by clearing deposits that affect valves and rings. It also helps prolong the life of spark plugs and injectors through cleaner combustion surfaces.

• Helps restore smoother idle and throttle response.
• Can contribute to longer spark plug and injector service life.
• May lower minor repair needs stemming from deposit-related issues.

Who is this for: Berryman B-12 Chemtool is intended for car owners, light-truck operators, small engine users, and professional mechanics who want a reliable, emission-safe fuel system cleaner. The 15 oz aerosol in a 12-pack is suited for fleet maintenance, repair shops, or enthusiasts who perform frequent service and need multiple cans on hand.