Rislone Radiator 10-Minute Flush 355ml

Use When You Notice…

• Temperature gauge creeping up in traffic: Delhi, Mumbai and Bengaluru jams force engines to idle 20–30 minutes — scale in radiator tubes makes overheating inevitable. This 10-minute radiator flush clears blockages fast.
• Drained coolant looks brown or smells burnt: Rust and deposit contamination have taken hold. Use this radiator cleaner India before fresh coolant goes in to remove built-up sludge completely.
• System topped up with tap water for years: Hard Indian tap water deposits calcium scale that silently reduces heat transfer — a quick flush clears it before visible damage appears.
• Switching coolant type or colour: Mixing incompatible formulations causes gelling. Flushing first ensures a clean, contamination-free refill every time.
• Preparing for summer or post-monsoon season: Temperature swings from monsoon to peak summer stress cooling seals — flush and refill proactively to stay protected.

Key Benefits

• Rapid 10-Minute Action: Completes a full flush during one idle cycle — no extra workshop time or overnight soaking required.
• Removes Scale from Hard Water: Dissolves calcium and mineral deposits caused by Indian hard water that reduce cooling efficiency by up to 40%.
• Prevents Radiator Blockage: Clears sludge from narrow radiator tubes, restoring proper coolant flow and preventing radiator blockage in Indian stop-and-go city traffic.
• Safe for Modern BS6 Engines: Non-acidic, non-corrosive formula protects aluminium radiators, plastic tanks and rubber seals found in BS6-compliant vehicles.
• Universal Coolant Compatibility: Works with all OEM and aftermarket coolant colours — no partial drain or special pre-treatment needed.

The Technology Inside

Rislone's 10-Minute Flush uses a surfactant and chelating agent blend to break the bond between rust particles, calcium carbonate scale and the metal surfaces they cling to. The chelating chemistry — the same principle used in industrial descaling — captures mineral ions and holds them in suspension so they drain out with the old coolant rather than settling back in your radiator tubes. A corrosion inhibitor package protects exposed aluminium and copper surfaces during the flush cycle, preventing any fresh oxidation while the cleaners do their work. Unlike harsh acid-based radiator cleaners, this neutral-pH formula will not attack gaskets, seals or the plastic coolant reservoir common on Maruti Suzuki, Hyundai and Tata vehicles. The result is a cooling system that transfers heat the way the manufacturer intended — critical when ambient temperatures exceed 45°C.

Dosage & Coverage

One 355ml bottle treats a standard passenger car cooling system of 4–6 litres capacity — covering most Indian hatchbacks, sedans and SUVs in a single application. Add the contents to a warm (not hot) radiator or coolant reservoir, run the engine at idle for 10 minutes, then drain and refill with fresh coolant and distilled water. Repeat at every major coolant change or annually, whichever comes first.

Compatibility

Safe to use with

• All coolant formulations — green (IAT), pink, blue and orange (OAT/HOAT) types
• Aluminium, copper, brass and plastic radiators and engine water jackets
• Rubber hoses, gaskets and plastic coolant reservoirs
• Compatible with Maruti Suzuki, Hyundai, Tata, Honda and Mahindra cooling systems
• BS4 and BS6 petrol and diesel passenger vehicles

Not suitable for

• Does not fix overheating caused by a faulty thermostat, failed water pump or blown head gasket
• Not a replacement for a full cooling system service when physically damaged components are present
• Not intended for two-wheeler or motorcycle cooling systems without confirming capacity compatibility

Why It Matters in India

Cooling system failures are among the top causes of roadside breakdowns on Indian national highways, particularly across Rajasthan, Uttar Pradesh and Maharashtra during April–June when ambient temperatures routinely touch 48°C. Indian municipal tap water — widely used for radiator top-ups — carries dissolved calcium and magnesium that deposit as hard scale inside radiator tubes, reducing coolant flow silently over thousands of kilometres. Addressing this scale buildup with a fast radiator flush before every coolant change keeps your cooling system suitable for Indian conditions — extreme heat, heavy traffic and hard water — without expensive workshop visits. BS6 engines run tighter tolerances and hotter combustion temperatures, making a clean, efficient cooling circuit more important than ever.

How To Use

1. Ensure the engine is completely cool before opening the radiator cap or coolant reservoir.
2. Pour the entire 355ml bottle directly into the radiator or coolant reservoir.
3. Start the engine and let it idle for 10 minutes with the heater set to maximum.
4. Switch off, allow to cool, then drain fully and refill with fresh coolant and distilled water.

Safety Note: Never open a hot radiator cap — scalding coolant can spray under pressure. Dispose of drained coolant responsibly; do not pour into drains or soil.

Frequently Asked Questions

Can I use this with any coolant colour in my Indian car?

Yes — Rislone 10-Minute Flush is compatible with all standard coolant formulations including green IAT, pink, blue and orange OAT types used by Maruti Suzuki, Hyundai, Tata and Honda. Simply flush, drain and refill with your preferred coolant without any compatibility concerns.

Is this product safe for BS6 vehicles with aluminium engines?

Absolutely. The non-acidic, neutral-pH formula is specifically safe for the aluminium engine blocks, cylinder heads and radiator cores found in modern BS6 vehicles. It will not corrode soft metals or damage plastic coolant tanks during the 10-minute flush cycle.

Will hard Indian tap water cause problems after I use this?

The flush removes existing scale deposits, but using tap water for the refill will start the buildup process again. Always top up or refill with distilled or demineralised water mixed with coolant concentrate to prevent scale and protect your cooling system long term.

How often should I use a radiator flush in Indian conditions?

We recommend flushing at every coolant change — typically every 2 years or 40,000 km, whichever comes first — or immediately if your coolant appears brown or your temperature gauge runs high. Vehicles operating in high-heat cities like Delhi or Chennai may benefit from annual flushing.

Is Cash on Delivery available and how fast will it arrive?

Yes — naredi.in offers Cash on Delivery across India with free shipping on all orders. Most metro areas receive delivery within 3–5 business days; remote pin codes may take up to 7 business days.

Complete Your Kit

Pair this flush with these Rislone products for a complete cooling system service.

• Rislone Radiator 10 Minute Flush (41211): The same trusted fast radiator flush formula — stock a spare bottle for your next coolant change interval.
• Rislone Hy-Per Cool Super Coolant (41300): Reduces coolant operating temperature by up to 15°C — the ideal partner after flushing, especially for Indian summer driving conditions above 45°C.

Warranty & Support in India

• Warranty: 1-year warranty against manufacturing defects
• Customer Support: Monday–Saturday, 9 AM–6 PM IST. WhatsApp / Phone: +91 93112 11157 · hello@naredi.in
• Returns: 14-day return and exchange policy, COD returns accepted
• Delivery: Free delivery across India, Cash on Delivery available