Application Made Easy With


05319 CRC GDI IVD™ Intake Valve Cleaner

Unlike fuel additives that get diluted into fuel before reaching the components of the fuel system, GDIIVDTM Intake Valve Cleaner is sprayed directly into the air intake system and hits the back of the intake valves with PEA (Polyether Amine) detergency at 150X the concentration of any premium fuel additive. No more engine tear-down required for clean intake valves, especially on GDI engines.

  • Increases Power and Torque
  • Stabilizes Rough Idle
  • Solves Rough Starting Problems
  • Reduces Emissions
  • Improves Fuel Economy
  • Safe on Turbos and Intercoolers
  • Unique Dual-Action Spray System
  • Use Every 10,000 Miles

How do I know if my intake valves are dirty?

Deposits form in every fuel system, but the amount and how quickly they form depends on the quality of fuel and oil you use, your driving style and engine type. GDI (gasoline direct injection) engine intake valves are prone to rapid deposit buildup because they never get cooled or washed with fuel. Deposits form in as few as 5,000 to 10,000 miles, restricting proper airflow and increasing operating temps.

    Symptoms of dirty intake valves include:
  • Hard starting
  • Rough idle
  • Poor acceleration
  • Reduced fuel economy
  • Power loss
  • Excess emissions

It is recommended to read the entire product label before use.

  1. 1. Start engine and meet operating temperature.
  2. 2. For best results locate and spray directly into the throttle body (go to step 4). If space is tight, product may be sprayed upside-down. Avoid spraying at a 90° angle. If throttle body is not easily accessible, spray downstream of the MAF sensor. Take care not to burn arm or hand on hot engine surfaces while dispensing can.
  3. 3. Engage (lift) the straw on the PermaStraw® Dual-Action Spray System and insert PAST the MAF sensor to avoid throwing a code.
  4. 4. With engine running at 2,000 RPM, spray product in short, 1-second bursts until can is empty. If necessary, accelerate to avoid engine stalling during spray period. DO NOT exceed 3,500 RPM.
  1. 5. Once can is empty, accelerate the engine 2 to 3 times without exceeding 3,500 RPM.
  2. 6. Run at idle for one minute, then turn engine off.
  3. 7. Reassemble air intake system and let engine heat-soak for one hour.
  4. 8. Restart engine and drive at highway speeds for at least 10 minutes.
  5. For the ULTIMATE fuel system cleanup, use this product followed by CRC Throttle Body & Air-Intake Cleaner #05078, CRC MAF Sensor Cleaner #05110 and CRC 1-TANK Power Renew® Complete Fuel System Cleanup #05815. CRC GDI IVD INTAKE VALVE CLEANER treats the "dry" side of the system to clean tough deposits from intake valves, while CRC 1-TANK Power Renew® treats the "wet" side; the fuel system, resulting in the DEFINITIVE cleanup for your fuel system.



GDI = Gasoline Direct Injection

What is different about GDI engine technology?

There are several, but the main difference is GDI injects fuel directly into the cylinders for combustion. GDI engines have a leaner air to fuel ratio; 40:1 vs. 14.7:1. GDI engines use a common rail fuel line at 2,000+ psi versus 60 psi on standard engines.

What are the benefits of GDI?

GDI engines have improved combustion that results in MORE POWER. GDI decreases fuel consumption for BETTER FUEL EFFICIENCY. GDI technology results in CLEANER EMISSIONS.

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Direct injection and turbocharging, combined with downsized engines, lead to significant increase in power density and therefore stress on fuel and lubricant.

Spark plug fouling is a concern with direct injection vehicles. Intake valve deposits are a MAJOR concern caused by blowback of combustion gases, flow of oil down the valve stem, EGR and PCV gases. Unlike port injected engines, with GDI the fuel isn t washed over the backs of the intake valves to offer a cleaning and cooling effect, so fuel and fuel additives only have an indirect effect.

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