CRC GDI Intake Valve Cleaner for GDI & PFI Engines — 11 oz Aerosol, High‑PEA Cozol Carbon Remover

CRC GDI IVD Intake Valve Cleaner is a concentrated aerosol formula engineered to dissolve baked-on carbon from intake valves on GDI and standard PFI engines. CRC's GDI IVD Intake Valve Cleaner applies a high-strength PEA-based formula directly into the intake system so stubborn carbon and deposits are broken down without removing intake hardware. The product is supplied in an 11 oz aerosol can that connects into the air intake tract and delivers targeted chemistry to the backs of intake valves and intake ports. Because GDI engines deposit fuel-free carbon on valve stems and ports, this concentrated cleaner is designed to reach those areas where in-fuel cleaners cannot.

How does this cleaner reach carbon buildup on GDI engines?

The aerosol is introduced through the air intake system, allowing the concentrated Cozol technology and high PEA content to coat intake valves and ports directly. It works by softening and dissolving baked-on carbon so that it can be removed during a service or wiped away by airflow.

• Connects into the air intake or throttle body for direct access
• Delivers Cozol technology plus the highest concentration of PEA detergency available
• Formulated specifically for areas that fuel additives cannot contact

What improvements can I expect after using it?

When applied according to instructions, the cleaner helps remove carbon that restricts airflow and interferes with valve movement. Users typically notice smoother idling, more consistent throttle response, and potential fuel economy gains once deposits are reduced and airflow is restored.

• Reduces rough idle caused by valve deposits
• Restores more consistent combustion and throttle response
• Can improve MPG by allowing better airflow and fuel delivery

How is this product applied safely and effectively?

Application requires access to the air intake or throttle body and following safety and vehicle-specific service steps. Use in a well-ventilated area, avoid ignition sources, and follow CRC’s directions for the correct dwell time and mechanical assistance for deposit removal.

• Install into the intake tract per the can instructions for even distribution
• Allow recommended dwell time for the formula to break down deposits
• Combine with mechanical cleaning or a brief engine run cycle as instructed

Will it work on turbocharged or standard port fuel injection engines?

Yes — the formula is proven for both GDI and standard PFI (port fuel injection) systems and is suitable for turbocharged engines. Its concentrated PEA chemistry targets carbon regardless of forced induction, provided application follows the vehicle manufacturer and CRC guidance.

• Proven to clean intake valves on GDI engines and turbo systems
• Effective on standard PFI engines when applied to intake ports
• 150X more concentrated than typical fuel additives for direct action

Who is this for? This CRC GDI IVD Intake Valve Cleaner is aimed at professional technicians, DIY enthusiasts, and fleet maintenance teams who need a targeted, high-strength solution for carbon removal on intake valves and ports. It’s especially useful when vehicle symptoms point to deposit-related issues — rough idle, reduced throttle response, or declining fuel economy — and when fuel-based cleaners alone cannot reach or remove the buildup. Use it as part of scheduled intake service or when diagnosing intake-related performance concerns, following all safety and application directions.

FAQ

Q: Can I use CRC GDI IVD on any gasoline engine?

A: Yes — it's formulated for both GDI and standard PFI gasoline engines, including turbocharged systems.

Q: How long until I see results after application?

A: Results vary by deposit severity; many users report noticeable improvement after one service when applied per instructions.