Royal Purple Max-Clean Fuel System Cleaner & Stabilizer - 20oz (11723)

Restore your fuel system to peak performance with Royal Purple Max-Clean. This state-of-the-art high-performance fuel system cleaner and stabilizer cleans injectors, carburetors, intake valves, and combustion chambers in a single treatment, restoring lost fuel economy and performance while stabilizing fuel for storage.

Key Features:

• Complete fuel system cleaner and stabilizer
• Cleans fuel injectors and carburetors
• Cleans intake valves and combustion chambers
• Restores fuel economy
• Fuel stabilizer for storage
• Compatible with gasoline and ethanol blends
• 20oz bottle treats up to 20 gallons
• Royal Purple quality and engineering

Performance Benefits:

• Restored Fuel Economy: Removes deposits that reduce injector efficiency
• Improved Performance: Cleaner combustion chambers restore power
• Reduced Emissions: Cleaner fuel system reduces harmful emissions
• Smoother Idle: Clean injectors and valves improve idle quality
• Fuel Stabilization: Prevents fuel degradation during storage
• Complete System Clean: One treatment cleans entire fuel system

Specifications:

• Brand: Royal Purple
• Part Number: 11723
• Product: Max-Clean Fuel System Cleaner & Stabilizer
• Size: 20oz
• Coverage: Treats up to 20 gallons of fuel
• Compatibility: Gasoline, ethanol blends (E10, E15, E85)
• Application: Add to fuel tank
• Barcode: 10641330017227

What's Included:

• 1x Royal Purple Max-Clean 20oz bottle

How to Use:

• Add entire 20oz bottle to fuel tank before filling
• Fill tank with up to 20 gallons of fuel
• Drive normally - cleaner works through normal operation
• For best results, use when fuel level is low before adding
• For storage: add to fuel tank before storing vehicle
• Repeat treatment every 10,000-15,000 km for maintenance

Complete Fuel System Cleaning:

Max-Clean is formulated to clean the entire fuel system in a single treatment. Starting at the fuel injectors or carburetor jets, the cleaner dissolves and removes varnish, gum, and carbon deposits that accumulate over time and restrict fuel flow. It then continues through the intake valves, removing carbon buildup that is particularly problematic in direct injection engines where fuel doesn't wash the valves. Finally, it cleans combustion chamber deposits that cause pre-ignition, knock, and reduced compression. This comprehensive cleaning restores the fuel system to near-new condition.

Restores Fuel Economy:

Fuel injector deposits are one of the most common causes of reduced fuel economy. Even a small amount of deposit buildup can alter the injector's spray pattern, reducing atomization efficiency and causing incomplete combustion. Max-Clean dissolves these deposits, restoring the injector's original spray pattern and improving fuel atomization. The result is more complete combustion, better fuel economy, and improved throttle response. Most users report noticeable improvements in fuel economy after a single treatment.

Intake Valve Cleaning - Critical for Direct Injection Engines:

Direct injection (DI) engines are particularly susceptible to intake valve carbon buildup because fuel is injected directly into the cylinder rather than the intake port. In port-injected engines, fuel washes the intake valves with every injection cycle, keeping them clean. In DI engines, oil vapors from the PCV system coat the intake valves and bake on as carbon deposits. These deposits restrict airflow and cause rough idle, hesitation, and power loss. Max-Clean's intake valve cleaning capability helps address this issue, making it especially valuable for modern DI engines found in many performance vehicles.

Fuel Stabilizer for Storage:

Max-Clean also functions as a fuel stabilizer, making it ideal for vehicles that will be stored for extended periods. Modern gasoline, especially ethanol-blended fuel, degrades relatively quickly - within 30-60 days it can begin to form varnish and gum deposits that clog fuel system components. Max-Clean stabilizes the fuel, preventing degradation for up to 12 months. This makes it an essential treatment before storing seasonal vehicles, track cars, or any vehicle that won't be driven regularly.

Compatible with All Gasoline Engines:

Max-Clean is compatible with all gasoline engines including those running ethanol blends (E10, E15, E85). It is safe for use with fuel injectors, carburetors, oxygen sensors, and catalytic converters. The formula is compatible with all fuel system materials including rubber seals and plastic components. It can be used in naturally aspirated and turbocharged engines, making it suitable for the full range of performance vehicles.

Why Royal Purple?

Royal Purple is a world-renowned manufacturer of high-performance lubricants and additives, trusted by professional race teams and enthusiasts worldwide. Their Max-Clean formula represents decades of chemistry expertise applied to fuel system maintenance. Royal Purple products are known for their effectiveness and quality, providing real-world performance improvements that enthusiasts can feel.

When to Use Max-Clean:

• Every 10,000-15,000 km as preventive maintenance
• When experiencing rough idle or hesitation
• When fuel economy has decreased noticeably
• Before storing a vehicle for the season
• After purchasing a used vehicle with unknown maintenance history
• When preparing a vehicle for emissions testing
• When experiencing hard starting or poor throttle response

Perfect For:

• All gasoline-powered vehicles as preventive maintenance
• Direct injection engines prone to intake valve carbon buildup
• Seasonal vehicles and track cars requiring fuel stabilization
• Vehicles experiencing reduced fuel economy or rough idle
• Used vehicle purchases with unknown fuel system maintenance history

Perfect For: All gasoline vehicles seeking Royal Purple Max-Clean for complete fuel system cleaning, restored fuel economy, and fuel stabilization.

Pro Tip: Add Max-Clean when your tank is nearly empty before filling up - this maximizes the cleaner's concentration as it works through your fuel system.

Complete Treatment: Cleans injectors, intake valves, and combustion chambers. Fuel stabilizer included. Compatible with E85. Treats up to 20 gallons. One bottle per treatment.

Restore your fuel system with Royal Purple Max-Clean - complete cleaning, restored economy, fuel stabilization, trusted Royal Purple quality.