Rislone 4405

Use When You Notice…

• You own a classic or vintage vehicle: Ambassador, Royal Enfield Bullet, Heritage Fiat, and classic Mahindra Jeep engines were engineered for high-ZDDP oils no longer sold in India — this product restores that protection precisely.
• Your engine has just been rebuilt: Cam lobe break-in demands maximum zinc coverage; modern oils leave freshly machined surfaces dangerously under-protected in the first 500–1,000 km.
• Your oil data sheet shows below 1,200 ppm phosphorus: If your flat-tappet engine needs high zinc oil and your current oil falls short, this additive closes the gap without switching brands.
• You run a modified or performance flat-tappet engine: Aggressive camshaft profiles and high spring pressures accelerate wear on lobes and lifters — extra ZDDP is your first line of defence.
• Your aging engine has high mileage: Worn contact surfaces in high-mileage Maruti, Tata, or Honda engines benefit significantly from a zinc top-up to slow further degradation.

Key Benefits

• Restores critical ZDDP levels: Brings zinc phosphate concentration back to the 1,200+ ppm range that flat-tappet and classic engines were designed to run on.
• Prevents adhesive cam wear: Forms a sacrificial protective film on cam lobes and lifters — the components most vulnerable to metal-to-metal contact under load.
• Extends engine life in Indian conditions: Protects engine internals against the combined stress of 42–48°C summer heat, heavy dust contamination, and relentless stop-go city traffic in Delhi, Mumbai, and Bengaluru.
• Safe break-in insurance: Provides maximum anti-wear coverage during the critical 500–1,000 km cam break-in period of any freshly rebuilt engine.
• Precise, measured dose: The 325 ml bottle is sized for a single oil fill — no guesswork, no over-treatment, no unnecessary phosphorus load on your catalytic converter.

The Technology Inside

Rislone 4405 delivers a concentrated zinc-dithiophosphate (ZDDP) anti-wear package that bonds to high-pressure metal surfaces under heat, forming a tough, sacrificial tribofilm that prevents direct metal-to-metal contact between cam lobes and flat-tappet lifters. When asperity peaks on sliding surfaces collide — as they do thousands of times per second inside a running engine — this tribofilm shears instead of the metal itself, dramatically reducing adhesive wear. Modern API SN/SP and BS6-compliant engine oils have progressively reduced ZDDP concentrations to protect catalytic converters, leaving engines designed in earlier decades chronically under-protected. Rislone 4405 closes this phosphorus gap without altering your oil's viscosity or base chemistry. The result is measurably lower wear rates on the surfaces that matter most: cam lobes, lifters, rocker arms, and valve train components.

Dosage & Coverage

Add one 325 ml bottle directly to your engine oil at every oil change, or as directed by the dosage chart on the bottle label. One bottle is calibrated for a standard 4–5 litre engine oil fill — the most common sump capacity in Indian passenger cars and motorcycles. Do not exceed the recommended dose; excessive phosphorus accumulation over multiple consecutive treatments can affect catalytic converter efficiency over time.

Compatibility

Safe to use with

• Petrol engines with flat (sliding) tappet valve trains — classic cars, motorcycles, and modified engines
• Freshly rebuilt engines during the cam break-in period
• Mineral, semi-synthetic, and full synthetic engine oils of all viscosity grades (0W-20 to 20W-50)
• High-mileage engines in Maruti, Hyundai, Tata, and Honda vehicles requiring a targeted zinc top-up

Not suitable for

• Modern roller-cam engines where standard oil ZDDP levels are already sufficient — unnecessary supplementation adds no measurable benefit
• Diesel engines — this formulation is optimised for petrol engine chemistry
• Use beyond the recommended dose — excess phosphorus can degrade catalytic converter performance over time

Why It Matters in India

India's classic car and motorcycle community is one of the fastest growing in Asia — Heritage Fiat, Hindustan Ambassador, Royal Enfield Bullet, and classic Mahindra Jeep owners are actively restoring vehicles whose engines were designed decades before low-ZDDP API standards existed. Indian summers push ambient temperatures to 42–48°C, accelerating oil oxidation and depleting additive packages faster than in temperate climates. Add the relentless stop-go traffic of Indian cities, potholed roads generating constant micro-shock loads, and high dust contamination shortening oil life — and the case for maintaining correct ZDDP levels becomes even stronger. Trusted by Indian mechanics and workshops who understand that protecting cam lobe geometry is always cheaper than a full valve train rebuild.

How To Use

1. Shake the bottle thoroughly before opening to ensure the concentrate is fully mixed.
2. Add the entire 325 ml bottle directly into the engine oil filler cap at oil change time.
3. Run the engine for 5 minutes at idle to circulate and blend the additive fully.
4. Check oil level on the dipstick and top up with fresh engine oil if required.

Safety Note: For external use on engine only. Keep away from children. Do not exceed the recommended single-bottle dose per oil fill. Store in a cool, dry place away from direct sunlight.

Frequently Asked Questions

Will extra zinc damage my catalytic converter?

Used at the recommended single-bottle dose, the incremental phosphorus increase is unlikely to cause meaningful catalyst damage in normal everyday use. Damage risk arises only when phosphorus levels are significantly and repeatedly exceeded — follow the label dose and you are well within safe limits.

My oil is already labelled "classic car" or "high-zinc" — do I still need this?

Check the actual zinc/phosphorus figure on your oil's technical data sheet. If it already lists 1,200 ppm or above for phosphorus, additional supplementation is likely unnecessary. If the data sheet is unavailable or the figure falls below 1,200 ppm, Rislone 4405 closes that gap reliably.

Is this product safe for BS6-compliant vehicles?

Rislone 4405 is intended for classic, rebuilt, and performance petrol engines with flat-tappet valve trains — not for modern BS6 vehicles, which use roller-cam designs and already carry appropriate additive packages. Using it in a modern BS6 engine offers no benefit and is unnecessary.

How often should I add Rislone 4405?

Add one bottle at every engine oil change for continuous protection. For freshly rebuilt engines, a treatment at the first oil fill and again at the first oil change (typically 1,000 km) is recommended to cover the full cam break-in window.

Is Cash on Delivery available, and how long does delivery take?

Yes — Cash on Delivery is available across India through naredi.in, with free delivery on all orders. Most pin codes receive delivery within 3–7 business days; Tier 1 cities such as Delhi, Mumbai, and Bengaluru are typically faster.

Complete Your Kit

For complete engine protection, pair Rislone 4405 with these complementary treatments:

• Rislone Engine Treatment Conditioner and Cleaner (44102): Cleans accumulated sludge and varnish from engine internals while conditioning seals and O-rings — an ideal companion treatment to run before or alongside your ZDDP top-up, especially in high-mileage Indian engines with years of stop-go city driving.

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