Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner User Manual

Introduction

The Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner is designed to clean and restore the efficiency of your vehicle's fuel, exhaust, and emissions systems. This product utilizes high-performing detergents and heavy-duty cleaning solvents to remove contaminants, soot, carbon build-up, and oily residue from critical components.

Regular use helps prevent issues such as increased exhaust emissions, reduced fuel economy, lost power, drivability problems, engine overheating, hard starts, and the illumination of the Check Engine Light (CEL).

Image: Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner bottle.

Key Benefits

• Increased Power and Performance: Cleans the entire emissions and exhaust system, as well as the fuel system, to restore optimal engine function.
• Improved Fuel Economy: Reduces fuel consumption by ensuring efficient combustion and system operation.
• Emission Reduction: Effectively cleans catalytic converters and other components to reduce harmful exhaust emissions, helping vehicles pass smog tests.
• Prevents Costly Repairs: Regular use every 5,000 miles helps maintain system cleanliness, preventing the return of the Check Engine Light and avoiding expensive repairs.
• Wide Compatibility: Safe for use in gasoline, ethanol, and hybrid vehicles, including all fuel-injected, direct-injected, carbureted, turbo, GTDI, Ecotec and EcoBoost engines.
• Warranty Safe: Will not void the manufacturer's new vehicle warranty. Designed for vehicles with oxygen sensors and catalytic converters, exceeding EPA compliance performance criteria.

Setup and Application

The Rislone 4720 cleaner is easy to apply. Ensure your vehicle is parked on a level surface and the engine is off before proceeding.

1. Locate your vehicle's fuel tank filler neck.
2. Remove the fuel cap.
3. Pour the entire contents of one 16.9 oz bottle of Rislone 4720 into the fuel tank.
4. Replace the fuel cap securely.

For best results, add the product to a half-full tank of gasoline. For trucks, add to a quarter-full tank.

Image: A person pouring Rislone 4720 into a vehicle's fuel tank, demonstrating the application process.

Operating Instructions

After adding Rislone 4720 to your fuel tank, drive the vehicle for 20 to 30 miles. Ideally, half of these miles should be at highway speeds to allow the cleaner to circulate effectively through the system and reach optimal operating temperatures.

The active chemical agents react with gases created during combustion to remove inorganic deposits, restoring function and efficiency to your vehicle's systems.

Maintenance Schedule

For preventative maintenance and to ensure long-term system efficiency, it is recommended to use Rislone 4720 every 5,000 miles. This regular treatment helps to continuously clean the fuel, exhaust, and emissions systems, preventing the accumulation of new deposits and maintaining optimal performance.

Image: A car dashboard showing a Check Engine Light, with text indicating that regular use every 5,000 miles helps prevent the light from returning.

Troubleshooting Common Issues

Rislone 4720 is specifically formulated to address common issues related to clogged catalytic converters and emissions systems.

Check Engine Light (CEL) Illumination:

If your Check Engine Light is on, especially with codes like P0420, P0421, P0430, or P0431, it often indicates an issue with the catalytic converter or oxygen sensors. Rislone 4720 helps clear these codes by cleaning the affected components, potentially turning off the CEL.

Image: A mechanic using an OBD-II scanner, illustrating the product's ability to clear diagnostic trouble codes like P0420.

Failed Emissions/Smog Test:

The product is guaranteed to help pass emissions smog tests by reducing excess exhaust hydrocarbons, CO, and NOx emissions. If your vehicle fails an emissions test, using Rislone 4720 as directed can improve your chances of passing a re-test.

Sulphur (Rotten Eggs) Exhaust Smell:

Rislone 4720 also deodorizes sulphur (rotten eggs) exhaust smell, which can be a symptom of an inefficient catalytic converter.

If the CEL remains on or emissions issues persist after proper application and driving, further mechanical diagnosis may be required.

Specifications

Warranty and Guarantee

Rislone offers a money-back guarantee for the Cat Complete Fuel, Exhaust and Emissions System Cleaner. If you use the product correctly as per the instructions and it does not clear the Check Engine Light (CEL) or help pass your emissions test (if the code is related to emissions), you may be eligible for a refund.

Please refer to the product packaging or the official Rislone website for detailed terms and conditions regarding the money-back guarantee and claim process.

Support and Contact Information

For further assistance, questions, or to inquire about the money-back guarantee, please contact Rislone customer support:

• Website: www.rislone.com
• Phone: 1-800-345-6572 (8 AM to 5 PM, Mon-Fri EST)
• Address: Rislone, Holly, Michigan USA 48442