Authorized Dealer
Free Shipping
5-Year Warranty
14-Day Returns
Rislone
Rislone Cat Complete Fuel, Exhaust & Emissions System Cleaner (44720) 425ml | Complete Emissions Fuel System Solution for India
Cleans catalytic converter, O2 sensors, fuel injectors and entire emissions system in one treatment.
volume
425ml
application
Petrol fuel tank
treats
Complete fuel, exhaust and emissions system
compatible
Catalytic converter safe
₹5,900
+ 18% GST
Total incl. GST: ₹6,962
Free shipping across India
14-day returns
Authorized Distributor
Official dealer since 2014
100% Genuine
Sourced directly from Rislone
Replacement Warranty
Defective unit replaced, not repaired
Direct Support
About This Product
Why the Rislone Cat Complete Fuel,?
The Cat Complete is Rislone's most comprehensive fuel and emissions treatment — it cleans the injectors, combustion chamber, catalytic converter, and oxygen sensors in a single treatment. Particularly relevant for Indian cars that fail emission tests — the catalytic converter and O2 sensors that trigger emission failures are often just fouled with carbon, not actually failed. A treatment before the emission test frequently clears the fault.
How It Works
The 4-step process explained
1
Injector Cleaning
Detergent compounds clean injectors while driving normally.
2
Combustion Improvement
Cleaner combustion produces fewer deposits downstream.
3
Catalytic Converter
Passes through the exhaust system and dissolves carbon deposits from the catalytic converter substrate.
4
O2 Sensor Cleaning
Removes contamination from oxygen sensor tips that cause false lean/rich readings.
How To Use
Step-by-step instructions
Add to a near-empty petrol tank.
Fill up with petrol immediately after.
For emission test preparation: use 1–2 tanks before the test for best results.
For a highway drive: run the engine hard for 15–20 minutes at high RPM to fully heat the catalytic converter and maximise cleaning.
Compatibility
Works with these vehicles
Compatible vehicles — common examples. If your vehicle is not listed, ask Arjun below — it almost certainly still works.
All petrol cars with catalytic converter
CAT cleaning
Petrol
Cars failing emission test
Pre-test treatment
Petrol
Vehicles with O2 sensor codes
Sensor and exhaust cleaning
Petrol
Don't see your vehicle? Ask Arjun — tell him your make, model and year for a direct answer.
Not suitable for: Diesel vehicles without a catalytic converter. Physically damaged catalysts.
How It Compares
vs other options
vs 44700 Complete Fuel System Cleaner: The 44700 focuses on the fuel system (injectors, intake, combustion chamber). The 44720 adds the catalytic converter and oxygen sensors — the full emissions system. For emission test preparation, the 44720 is the more appropriate product.
FAQ
Common questions
Are Rislone additives safe for Indian vehicles?
Yes. Rislone is an American brand formulating automotive additives since 1921. Their products are designed to be compatible with all modern engine oils, coolants, and transmission fluids. They are sold in over 70 countries and are safe for Indian petrol and diesel engines.
Can I use a stop leak additive as a permanent fix?
Stop leak additives condition rubber seals to swell slightly and re-seat. They work on slow seeps and minor leaks and the effect can last 30,000-50,000km. They are not a replacement for a mechanical repair on a major leak — but for minor seeps, they are a legitimate and commonly used solution.
Will fuel additives void my car's warranty?
No — adding a fuel system cleaner to the tank is no different from using a different petrol pump. Indian car manufacturers do not prohibit fuel additives. If a dealer ever claims this, ask for the specific clause in the warranty document.
How often should I use a fuel system cleaner?
Once every 10,000-15,000km or approximately once a year for normal use. If you use a specific station known for poor quality fuel, every 5,000km is reasonable. The cost is ₹900-2,400 and it takes 30 seconds to add to the tank.
Is naredi.in an authorized dealer?
Yes. naredi.in is the authorized distributor in India for CTEK, Rislone, OzCharge, Autool and Foxwell. Products are sourced directly from the brands — not grey market imports. Warranty is handled by naredi.in directly in India.
What is the return policy?
14-day returns from the date of delivery, hassle-free. Contact naredi.in via WhatsApp at +91 93112 11157 to initiate a return.
How long does shipping take?
Free shipping across India. Metro cities typically 2-3 days, other cities 3-5 days. Tracking is provided once dispatched.
Related Products
You may also need
Rislone
Rislone 710 Oil Treatment (4471) 443ml | Advanced Engine Oil Booster for India
₹1,900
Rislone
Rislone One Seal Stop Leak (44334) 325ml | Universal Engine, Transmission Power Steering Leak Repair for India
₹1,900
Rislone
Rislone Hy-per Fuel Complete Fuel System Cleaner Petrol (44700) 500ml | Restore Power Mileage for Indian Vehicles
₹2,400
Rislone
Rislone Hy-per Fuel Injector Cleaner Concentrate (44701) 177ml | Restore Engine Power Fuel Efficiency in India
₹900
Ask Arjun
Not sure if this is right for your vehicle?
Tell Arjun your vehicle and situation — he'll give you a straight answer, not generic advice.
A
Arjun — naredi.in Advisor
Online now
A
Hi! I'm Arjun — naredi.in's automotive advisor. You're looking at the Rislone Cat Complete Fuel, Exhaust & Emissions System Cleaner (44720) 425ml. What's your vehicle or question?