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Description
RISLONE CAT Complete Fuel, Exhaust & Emission System Cleaner 44720Rislone CAT COMPLETE Fuel, Exhaust & Emissions System Cleaner has high performing detergents and heavy duty cleaning solvents that effectively scrub and remove contaminants, soot, carbon build up, and oily residue from the fuel injectors, combustion chambers, turbo, EGR, catalytic converters, oxygen sensors and the exhaust system. These along with other active chemical agents, react with the gases created in the combustion process to remove the
Rislone CAT COMPLETE™ Fuel, Exhaust & Emissions System Cleaner has high-performing detergents and heavy duty cleaning solvents that effectively scrub and remove contaminants, soot, carbon build-up, and oily residue from the fuel injectors, combustion chambers, turbo, EGR, catalytic converters, oxygen sensors and the exhaust system. These along with other active chemical agents, react with the gases created in the combustion process to remove the remaining inorganic deposits. This process restores their function and with regular use maintains efficiency.
- Turns Off Check Engine Light
- Clear P0420 & Other OBD Codes
- Cleans & Restores Catalytic Converter
- Reduces Emissions & Saves Gas
Dosage & Directions
Dosage
Add entire bottle into approximately ½ full tank car or small to mid-size SUV (¼ full tank truck or large SUV) of petrol.
Directions
Add entire bottle of Fuel, Exhaust & Emissions Systems Cleaner into approximately ½ full tank car (¼ full tank truck) of petrol. Drive vehicle 20 to 30 kilometres (ideally half of these kms at highway speeds), and then fill up tank. Continue to drive vehicle normally until below ¼ tank before refueling. Take emissions test at this time (if needed) and CEL light should be off. Depending on the severity and length of time light has been on, it may take an extra 250 kilometres with multiple cycles of the vehicle being started and turned off for the light to reset. If light is still on mechanical attention is needed.
This bottle is designed to work in ALL petrol tanks including standard, obstructed and capless (no fuel cap) systems. If vehicle has a fuel cap make sure to reinstall tightly, as this can cause the light to be on.
Frequently Asked Questions
What does Rislone Fuel, Exhaust & Emissions System Cleaner do?
Rislone CAT COMPLETE™ Fuel, Exhaust & Emissions System Cleaner has high-performing detergents and heavy-duty cleaning solvents that effectively scrub and remove contaminants, soot, carbon build-up, and oily residue from the fuel injectors, combustion chambers, turbo, EGR, catalytic converters, oxygen sensors and the exhaust system. These along with other active chemical agents, react with the gases created in the combustion process to remove the remaining inorganic deposits. This process restores their function and with regular use maintains efficiency.
Rislone CAT COMPLETE™ Fuel, Exhaust & Emissions System Cleaner has high-performing detergents and heavy-duty cleaning solvents that effectively scrub and remove contaminants, soot, carbon build-up, and oily residue from the fuel injectors, combustion chambers, turbo, EGR, catalytic converters, oxygen sensors and the exhaust system. These along with other active chemical agents, react with the gases created in the combustion process to remove the remaining inorganic deposits. This process restores their function and with regular use maintains efficiency.
Can a clogged catalytic converter be cleaned?
Yes, many times it can, especially if you catch it early and it is not completely blocked.
How much do I use?
One full bottle is used to treat a normal passenger car, SUV, Ute or light truck vehicle.
Any special directions for using?
Will this work with all types of gasoline?
Yes, Rislone CAT COMPLETE™ Fuel, Exhaust & Emissions System Cleaner works with all regular unleaded, premium, oxygenated, and ethanol containing flex fuels.
Can I use in diesel engines?
No, Rislone CAT COMPLETE™ Fuel, Exhaust & Emissions System Cleaner is only designed to be used with petrol engines.
What is a catalytic converter?
The catalytic converter, sometimes called the catalyst or “cat”, is an emission control device mounted in the vehicle exhaust system that contains a catalyst which converts toxic pollutant gases into less harmful gases. A motor vehicle can have one or more of these. There are multiple designs including honeycombed and bead shape, which are coated with precious metals like palladium, rhodium, and platinum.
What causes a catalytic converter to go bad?
Vehicle manufactures say that the catalytic converter should last the life of the vehicle, but in the real world this is usually not the case. Many things can cause the converter to go bad or fail, but in most of these cases it was not the fault of the converter itself, it was something else which poisoned or ruined the converter. Some examples would be a bad head gasket where coolant enters the exhaust, poor piston rings causing the engine to burn oil, dirty fuel injectors, clogged fuel filter and even driving many short trips can shorten the life of the converter, among many others.
When you refer to “poisons” what is specifically considered a poison?
A poison to the catalytic converter or oxygen sensor is any substance that coats its surface and no longer allows it to react with the exhaust gasses. Lead, which used to be in gasoline, was the number one poisoning substance, and one of the reasons it has been removed from fuels. Zinc and phosphorus in engine oils are other potentially damaging substances, especially if the vehicle is burning oil. Burned engine coolant (ethylene glycol) is also bad, which happens when a head gasket fails. Silicone, commonly found in gasket sealants, have also been known to harm catalytic converters.
What are symptoms of a clogged or restricted catalytic converter?
Because of the increased backpressure that builds up from a clogged catalytic converter, the vehicle will have drivability issues like low power and performance, reduced fuel economy, hard starting, stalling, increased emissions, and check engine light illumination.
Will this harm the oxygen sensors or the catalytic converter?
No, this will not harm your engine or any emissions components. This product is specifically designed to be safe to use on vehicles which have oxygen sensors and catalytic converters. Likewise, it will not void manufacturer’s new vehicle warranty. Exceeds EPA compliance performance criteria.
Will this help with my smelly exhaust?
Yes, this can help with multiple causes of the strong sulfur (rotten egg) smell relating to an incorrectly functioning catalytic converter or some of the fuel system problems that contribute to this issue.
How do I repair a clogged catalytic converter without replacing it?
Using a product like Rislone Fuel, Exhaust & Emissions System Cleaner should be the first step before replacing the catalytic converter. This not only gives the vehicle the best chance of being repaired affordably, but also works to fix a contributing issue which may have caused the problem with the converter.
If first application does not completely stop my problem, may I use another bottle?
In extremely dirty systems a second treatment may be beneficial. Because the product is so concentrated, run a full tank of petrol through the vehicle before adding the second bottle.
Can I use in a hybrid vehicle?
Yes, this is a great product to use in a hybrid vehicle. You may need to override the hybrid system so that the petrol engine continues to run while using this product for a complete cleaning.
Does it work with both fuel injected and carbureted engines?
Yes, this multi-vehicle formula works with all fuel injected, port fuel injection (PFI), direct injected (DI / DIG), gasoline turbo direct injected (GTDI), turbocharged and carbureted engines.
Can I use in my intercooled, turbo charged or direct injected engine?
Yes, this is safe to use and works in all domestic and import turbo charged and directed injected gasoline (GDI / GTDI) engines like the Ford EcoBoost, GM Ecotec and all others.
Why is my check engine light on?
Many factors can cause this including something as simple as a loose or missing fuel cap. Other common items are a bad or clogged catalytic converter, damaged or dirty oxygen sensor, failed ignition coil/spark plugs/wires, dirty mass air flow (MAF) sensor, bad EVAP purge control valve, clogged fuel injectors.
What do I do if the check engine light comes on?
Many retail auto parts stores offer free on-board diagnostic (OBD) code checks, and inexpensive code readers are available to purchase for do it yourself (DIY) checks.
What does it mean when the check engine light comes on?
When the check engine light (CEL) or malfunction indicator light (MIL) illuminates, it has detected an engine system malfunction.
Why did my vehicle fail the emissions test?
Many states or regions require regular emissions inspections before renewing vehicle plates or the first time registering. During a visual inspection if there are missing or tampered emissions components, that can be an automatic failure. It also could be something simple like a missing fuel cap or a cap with a bad seal. Defective mechanical parts that have failed would be another reason. Many times, it does not take a mechanical issue to cause a failed result on a vehicle emissions test. If you are unsure your vehicle will pass, or maybe it barely passed the last test, we recommend a fresh oil change and emissions system cleaning with Rislone Fuel, Exhaust & Emissions System Cleaner before testing. Other items to consider include spark plugs and fuel filter if they are due for replacement. This gives your vehicle the best chance of passing.
Yes, instructions must be followed to receive the best results. Add entire bottle of CAT COMPLETE™ Fuel, Exhaust & Emissions Systems Cleaner into approximately ½ full tank for car or small to mid-size SUV, (¼ full tank for truck or large SUV) of petrol. Drive vehicle 30 to 50 km, ideally half at highway speeds and then fill up tank. Continue to drive vehicle normally until below ¼ tank before refueling. Take emissions test at this time if needed and CEL light should be off. Depending on the severity and length of time light has been on, it may take an extra 400 km with multiple cycles of the vehicle being started and turned off for the light to reset. If light is still on mechanical attention is needed.
How often should this be used?
Regular use every 8,000 km tunes-up the fuel, emissions, and exhaust systems, keeping them clean and preventing the CEL light from returning. This also saves on expensive fuel system and emission control repairs.
Regular use every 8,000 km tunes-up the fuel, emissions, and exhaust systems, keeping them clean and preventing the CEL light from returning. This also saves on expensive fuel system and emission control repairs.
Will this work with all types of gasoline?
Yes, Rislone CAT COMPLETE™ Fuel, Exhaust & Emissions System Cleaner works with all regular unleaded, premium, oxygenated, and ethanol containing flex fuels.
Can I use in diesel engines?
No, Rislone CAT COMPLETE™ Fuel, Exhaust & Emissions System Cleaner is only designed to be used with petrol engines.
How does the emission and exhaust system get dirty?
As fuel is burned, contaminating byproducts are created that get circulated throughout various vehicle components. These systems are designed to be able to handle this process during most normal engine operation. However, the use of poor-quality fuel, short driving distance, cold weather, improper maintenance, and component failure can create and greatly increase the amount of contamination and deposits inside these systems.
As fuel is burned, contaminating byproducts are created that get circulated throughout various vehicle components. These systems are designed to be able to handle this process during most normal engine operation. However, the use of poor-quality fuel, short driving distance, cold weather, improper maintenance, and component failure can create and greatly increase the amount of contamination and deposits inside these systems.
What is a catalytic converter?
The catalytic converter, sometimes called the catalyst or “cat”, is an emission control device mounted in the vehicle exhaust system that contains a catalyst which converts toxic pollutant gases into less harmful gases. A motor vehicle can have one or more of these. There are multiple designs including honeycombed and bead shape, which are coated with precious metals like palladium, rhodium, and platinum.
What causes a catalytic converter to go bad?
Vehicle manufactures say that the catalytic converter should last the life of the vehicle, but in the real world this is usually not the case. Many things can cause the converter to go bad or fail, but in most of these cases it was not the fault of the converter itself, it was something else which poisoned or ruined the converter. Some examples would be a bad head gasket where coolant enters the exhaust, poor piston rings causing the engine to burn oil, dirty fuel injectors, clogged fuel filter and even driving many short trips can shorten the life of the converter, among many others.
When you refer to “poisons” what is specifically considered a poison?
A poison to the catalytic converter or oxygen sensor is any substance that coats its surface and no longer allows it to react with the exhaust gasses. Lead, which used to be in gasoline, was the number one poisoning substance, and one of the reasons it has been removed from fuels. Zinc and phosphorus in engine oils are other potentially damaging substances, especially if the vehicle is burning oil. Burned engine coolant (ethylene glycol) is also bad, which happens when a head gasket fails. Silicone, commonly found in gasket sealants, have also been known to harm catalytic converters.
What are symptoms of a clogged or restricted catalytic converter?
Because of the increased backpressure that builds up from a clogged catalytic converter, the vehicle will have drivability issues like low power and performance, reduced fuel economy, hard starting, stalling, increased emissions, and check engine light illumination.
Will this harm the oxygen sensors or the catalytic converter?
No, this will not harm your engine or any emissions components. This product is specifically designed to be safe to use on vehicles which have oxygen sensors and catalytic converters. Likewise, it will not void manufacturer’s new vehicle warranty. Exceeds EPA compliance performance criteria.
Will this help with my smelly exhaust?
Yes, this can help with multiple causes of the strong sulfur (rotten egg) smell relating to an incorrectly functioning catalytic converter or some of the fuel system problems that contribute to this issue.
How do I repair a clogged catalytic converter without replacing it?
Using a product like Rislone Fuel, Exhaust & Emissions System Cleaner should be the first step before replacing the catalytic converter. This not only gives the vehicle the best chance of being repaired affordably, but also works to fix a contributing issue which may have caused the problem with the converter.
What is the most common check engine light CEL code?
The number one check engine light code is P0420 - It has sister related codes which are P0421, P0430 and P0431. These codes mean that the efficiency of the catalytic converter is below its functional threshold.
The number one check engine light code is P0420 - It has sister related codes which are P0421, P0430 and P0431. These codes mean that the efficiency of the catalytic converter is below its functional threshold.
If first application does not completely stop my problem, may I use another bottle?
In extremely dirty systems a second treatment may be beneficial. Because the product is so concentrated, run a full tank of petrol through the vehicle before adding the second bottle.
Can I use in a hybrid vehicle?
Yes, this is a great product to use in a hybrid vehicle. You may need to override the hybrid system so that the petrol engine continues to run while using this product for a complete cleaning.
Does it work with both fuel injected and carbureted engines?
Yes, this multi-vehicle formula works with all fuel injected, port fuel injection (PFI), direct injected (DI / DIG), gasoline turbo direct injected (GTDI), turbocharged and carbureted engines.
Can I use in my intercooled, turbo charged or direct injected engine?
Yes, this is safe to use and works in all domestic and import turbo charged and directed injected gasoline (GDI / GTDI) engines like the Ford EcoBoost, GM Ecotec and all others.
Why is my check engine light on?
Many factors can cause this including something as simple as a loose or missing fuel cap. Other common items are a bad or clogged catalytic converter, damaged or dirty oxygen sensor, failed ignition coil/spark plugs/wires, dirty mass air flow (MAF) sensor, bad EVAP purge control valve, clogged fuel injectors.
What do I do if the check engine light comes on?
Many retail auto parts stores offer free on-board diagnostic (OBD) code checks, and inexpensive code readers are available to purchase for do it yourself (DIY) checks.
What does it mean when the check engine light comes on?
When the check engine light (CEL) or malfunction indicator light (MIL) illuminates, it has detected an engine system malfunction.
Why did my vehicle fail the emissions test?
Many states or regions require regular emissions inspections before renewing vehicle plates or the first time registering. During a visual inspection if there are missing or tampered emissions components, that can be an automatic failure. It also could be something simple like a missing fuel cap or a cap with a bad seal. Defective mechanical parts that have failed would be another reason. Many times, it does not take a mechanical issue to cause a failed result on a vehicle emissions test. If you are unsure your vehicle will pass, or maybe it barely passed the last test, we recommend a fresh oil change and emissions system cleaning with Rislone Fuel, Exhaust & Emissions System Cleaner before testing. Other items to consider include spark plugs and fuel filter if they are due for replacement. This gives your vehicle the best chance of passing.
Technical Information
SAFETY DATA SHEET
CODE: 44720
SIZE: 425ML
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Best affordable squeaker toy
Color: Crinkle Chicken (Brown), Size: Large, Color: Crinkle Chicken (Brown), Size: Large
my dog is obsessed with this toy, this has became his new comfort toy and after having this for about four months the legs are falling off but it’s very durable. The squeaker also moved from the head of the chicken to the body of the chicken but that’s after it was played with every single day. I love that it has two squeakers and it’s the perfect toy for my dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
My dogs favorite toy EVER
Color: Crinkle Chicken (Brown), Size: Large
I have a Belgian Malinois who loves any and every toy, but this one is definitely her favorite. She will walk around the house constantly carrying it in her mouth, which is honestly adorable to watch.
The squeakers only lasted a couple of months, but I don’t really consider that a downside—I’m kind of grateful they didn’t last forever given how much she plays with it. It still remains one of her most-loved toys even without them.
My only word of caution is that if you work from home, this toy makes a lot of crinkling noise. And I mean A LOT. It’s great for keeping the dog entertained, but it can definitely get a little frustrating for humans trying to focus or take calls.
Overall, it’s been a big hit in our house and easily one of her favorite toys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
★★★★★ 5
Super cute
Color: Bunny (Mauve), Size: Small
Super cute and fuzzy. Definitely perfect size for a puppy and not too loud. The fur is very soft and the nose is sown on not a hard piece that can be chewed on. Very good quality too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
★★★★★ 4
Normally amazing
Color: Spiky Ball (Blue, Orange), Size: Medium
We have purchased these slightly spiky dog balls several times for our very strong jaw heavy chewer dogs and they’ve been amazing. They don’t break down they don’t get torn apart the squeakers don’t even pop out of them.
So we ordered another package because we’ve lost a few outside to the lawnmower… oops and the package that got delivered today had only one ball that squeaks and the other does not. THIS IS A PROBLEM ! Unfortunately my female dog got to the new squeaking ball first and my male got to the non-squeaking ball and he was NOT happy. Basically once they claim a ball it’s theirs and the other dogs don’t go near the ball they claimed. So he’s following my female around and every time she squeaks the ball and I’m just waiting for him to attempt to take it from her causing damage to her. Normally… These are amazingly fun, tough, durable but also squeaking balls (that’s rare in a tough ball) that my dogs absolutely love.
This time just got a bad batch I guess. When they squeak the dogs LOVE them. After several months of play the squeaker might break inside of the ball but the ball never comes apart or gets damaged. And we as the owners love that they don’t break down are not able to be ripped or torn even by our very strong jawed and big jaw muscle dogs.
They are also great for in the house play because they’re small enough that they fit completely inside our dog‘s mouth but obviously not small enough to get swallowed so when we throw them in the house for fetch the dogs can jump up and catch them fully in their mouth so they don’t cause any damage to the walls when they hit the walls. They’re not super heavy but they’re incredibly durable.
Definitely worth the price especially if you have heavy chewers or big jaw muscle dogs.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Best fun indestructible toy
Color: Crinkle Duck (Yellow), Size: Large
Truly indestructible no matter how much our oittie tries. She has owned it for three months works at destroying every day with no success. She carries it everywhere. Best purchase for chewer, more fun than the popular rubber heavy duty toy. Do not hesitate your pup will thank you for this fun distraction.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026