Best Emissions Reduction Additives

1. ACDelco GM Original Equipment 10-4022 Diesel Exhaust Emissions Reduction (DEF) Fluid – 1 gal, white

ACDelco GM Original Equipment 10-4022 is a diesel exhaust emissions reduction (DEF) fluid. It comes in a 1-gallon container and is white in color.

This fluid meets GM Original Equipment specifications and is approved for GM and non-GM diesel vehicles. It works with SCR systems to reduce NOx emissions. Your actual emissions will vary based on temperature, terrain, and driving conditions.

The high-quality formula uses high purity urea and deionized water. It meets API regulations and the ISO 22241 standard for purity and concentration. Nozzles are sold separately.

2. 4Pcs Catalytic Converter Cleaner,Auto Parts Engine Catalytic System Cleaner,Fuel & Exhaust System Carbon Remover for Gas/Diesel Cars,Engine Treatment Additive Oil Restores Power & Reduces Emissions

Catalytic Converter Cleaner is a must-have for your car. It reduces carbon build-up in key parts. This improves performance and saves money.

It’s easy to use—just pour it into your fuel tank. It works automatically while you drive. No extra steps or tools needed.

This cleaner cuts emissions and boosts fuel efficiency. It helps pass inspections and extends engine life. A smart choice for any driver.

3. ATS Chemical 505 CRO Oil System Treatment – 12 oz Engine Oil Additive – Cleans Sludge, Reduces Emissions, Quiet Smooth Idle & Restores Performance in High-Mileage Gas & Diesel Engines

ATS Chemical 505 CRO Oil System Treatment is a powerful engine oil additive. It cleans sludge and restores performance in high-mileage gas and diesel engines.

This treatment reduces emissions and promotes a quiet, smooth idle. It targets common engine issues like sticking piston rings and restricted lubricating screens.

Easy to use, effective, and reliable. Improves engine health and extends its life. A must-have for vehicle maintenance.

4. ACDelco Gold 10-4023 (19286292) Diesel Exhaust Emissions Reduction (DEF) Fluid – 2.5 gal (Pack of 2)

ACDelco Gold DEF Fluid is a high-quality product. It meets GM Original Equipment specs. Use it in GM and non-GM diesel vehicles.

This fluid is made from pure urea and deionized water. It has no additives that could harm your SCR system. It helps reduce NOx emissions.

The pack includes two 2.5-gallon bottles and one vented nozzle. Extra nozzles are sold separately.

5. Three-Way Catalyst Cleaner – Engine Performance Additive, Catalytic Converter Cleaning Solution | Mileage Fuels System Cleaner, Engine Emission Reduction Degreaser for diesels and gasolines Vehicles

Boost your engine’s power with our Three-Way Catalyst Cleaner. It cleans carbon deposits, improves performance, and reduces emissions for both diesel and gasoline vehicles.

Save fuel, cut costs, and drive cleaner. Simple to use—just add to your oil for complete engine care.

6. NTCLHFXU Emissions Reduction 120ml Cleans Exhaust Systems to Lower Pollution Levels Engine and Catalytic

NTCLHFXU Emissions Reduction is a 120ml solution that cleans exhaust systems and cuts pollution. It removes carbon buildup to restore engine power and lower harmful emissions. This works for cars, SUVs, and trucks.

It protects engine parts by reducing metal friction and prevents re-deposits. This extends engine life and improves fuel efficiency.

Use it for daily drives, highway trips, or winter storage. It ensures smoother engine function and saves energy. Perfect for high-mileage vehicles and busy drivers.

7. Doc’s Diesel DEF Diesel Exhaust Fluid with DEFGUARD Additive SCR Emissions Treatment Kit for Diesel DEF Systems | 2.5-Gallons + 8 oz

Doc’s Diesel DEF is a complete emissions treatment kit for diesel vehicles. It includes diesel exhaust fluid (DEF) and DEFGUARD additive to keep your engine clean and efficient. This kit is perfect for trucks, pickups, and equipment.

It meets strict DEF system requirements and works with Cummins, Duramax, Powerstroke, and EcoDiesel engines. The DEFGUARD additive helps reduce deposits and improve SCR performance, keeping your system running smoothly.

Easy to use, protects in all conditions, and supports fleet maintenance. Perfect for long-haul trucks and service shops.

8. Catalytic Converter Cleaner | 120ML Carbon Remover, Emission, Exhaust Additive | Deposit Breakdown, Performance Recovery, Efficiency Support | Car SUV RV Truck Tractor High Mileage Exhaust

Catalytic Converter Cleaner keeps your engine clean and efficient. It removes carbon buildup and prevents new deposits. This helps your car run smoother and save fuel.

It reduces friction in your engine, protecting it from wear. This means your car lasts longer and runs better. Perfect for daily drives or long trips.

The fast-acting formula breaks down deposits quickly and easily. No need to disassemble anything—just add and go. Works for cars, trucks, SUVs, and more.

9. Emissions Reduction 120ml Cleans Exhaust Systems to Lower Pollution Levels Advanced

Emissions Reduction 120ml is a powerful liquid formula designed to clean exhaust systems and lower pollution levels. It traps molecular impurities in your engine, prevents re-deposits, and optimizes combustion. This helps reduce oil consumption and extend engine life.

Use it in traffic, on highways, or during winter storage to prevent carbon buildup. It ensures smoother engine functioning and boosts energy efficiency in all driving modes. Perfect for cars, SUVs, and trucks, it works without disassembling parts.

Ideal for high-mileage vehicles, it minimizes maintenance and enhances fuel efficiency. Whether for daily commutes or long journeys, it restores engine power and reduces harmful emissions reliably.