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 designed for high-ZDDP oils — modern lubricants leave these cams under-protected.
• Your engine has just been rebuilt: Freshly machined cam surfaces need maximum zinc coverage in the first 500–1,000 km; standard modern oils do not deliver enough.
• Your oil data sheet shows below 1,200 ppm phosphorus: If your flat-tappet engine demands high zinc motor oil and your current oil falls short, this additive closes that gap precisely.
• You run a modified or performance engine: Aggressive cam profiles create extreme contact pressures that standard modern oils simply cannot handle without supplemental ZDDP.
• Your vehicle endures stop-start city traffic: Delhi, Mumbai, and Bengaluru's brutal stop-go conditions accelerate cam wear — extra ZDDP provides a critical buffer.

Key Benefits

• Restores ZDDP Anti-Wear Film: Raises zinc phosphate levels to the 1,200+ ppm range that flat-tappet and classic engines were engineered to run on.
• Break-In Protection: The best break-in oil additive for rebuilt engines — forms a sacrificial film during the critical cam seating period when wear risk is highest.
• Survives Indian Summer Heat: Protects engine internals even when ambient temperatures hit 42–48°C, conditions that degrade standard oil films rapidly.
• Extends Engine Life: Extends engine life in Indian driving conditions — heat, dust, and relentless stop-go city traffic — reducing workshop visits and repair bills.
• Universal Oil Compatibility: Works with any viscosity grade and oil type — no need to switch your existing engine oil brand or grade.
• Precise, Safe Dosing: 325 ml bottle delivers targeted zinc supplementation without the phosphorus overload that can affect catalytic converter performance.

The Technology Inside

Rislone 4405 delivers a concentrated zinc-dithiophosphate (ZDDP) anti-wear package that chemically bonds to high-pressure metal surfaces under heat. At the asperity-contact level — where cam lobes and flat-tappet lifters meet — this sacrificial film absorbs shear forces that would otherwise cause adhesive wear and metal transfer. Unlike friction modifiers that simply reduce surface friction, ZDDP actively reacts with the metal surface to create a tough tribofilm that reforms continuously during operation. This mechanism is especially important during cam break-in, when micro-peaks on freshly machined surfaces contact each other at extreme local pressures. The result is measurably less cam lobe wear, longer rebuild life, and an engine that retains its performance characteristics well beyond what modern low-phosphorus oils alone can achieve.

Dosage & Coverage

Add one 325 ml bottle directly to the engine oil at every oil change — suitable for engine oil capacities of 3–6 litres, which covers most Indian passenger cars and motorcycles. Shake the bottle well before pouring, then run the engine for five minutes to ensure thorough mixing throughout the oil system. Do not exceed the recommended single-bottle dose; excessive phosphorus over time can gradually degrade catalytic converter efficiency in BS6-compliant vehicles.

Compatibility

Safe to use with

• Petrol engines with flat-tappet (sliding) cam designs — classic cars, motorcycles, and rebuilt engines.
• Modified and performance engines running aggressive camshaft profiles.
• All oil viscosity grades: 5W-30, 10W-40, 15W-50, 20W-50, and others.
• Mineral, semi-synthetic, and full synthetic engine oils.
• High-mileage Maruti, Hyundai, Tata, and Honda engines requiring rejuvenation without costly overhaul.

Not suitable for

• Modern roller-cam engines where standard oil ZDDP levels are already sufficient — unnecessary supplementation adds no benefit.
• Diesel engines with DPF (Diesel Particulate Filter) systems — phosphorus can accelerate filter clogging.
• Gearboxes, differentials, or power steering systems — formulated for engine oil only.

Why It Matters in India

India's classic car and motorcycle community is growing fast — Heritage Fiat, Hindustan Ambassador, Royal Enfield Bullet, and vintage Mahindra Jeep owners rely on high-ZDDP oils that are increasingly hard to source locally. Meanwhile, Indian roads deliver a punishing combination: pothole impacts every few hundred metres, ambient summer temperatures reaching 48°C in May and June, and dense urban dust that contaminates engine oil faster than in any temperate market. Trusted by Indian mechanics and workshops across Tier 2 and Tier 3 cities, Rislone 4405 is the practical, affordable answer to protecting aging engines without a full rebuild — precisely the kind of solution that keeps beloved vehicles on Indian roads for another decade.

How To Use

1. Shake the 325 ml bottle thoroughly before opening to homogenise the concentrated ZDDP formula.
2. Pour the entire bottle into the engine oil filler cap with the engine at operating temperature.
3. Run the engine at idle for five minutes to distribute the additive evenly through the oil system.
4. Check the dipstick oil level and top up with engine oil if required to reach the correct mark.

Safety Note: Always use the recommended dose only. Keep away from children. Dispose of empty bottle responsibly per local municipal guidelines.

Frequently Asked Questions

Will extra zinc damage my catalytic converter on a BS6 vehicle?

At the recommended single-bottle dose, the incremental increase in phosphorus is unlikely to cause measurable catalyst damage under normal driving conditions. Rislone 4405 is intended for classic and flat-tappet engines that typically predate BS6 emissions systems; if your vehicle is BS6-compliant with a modern roller cam, you likely do not need this product at all.

My oil is already labelled "classic car" or "racing" grade — do I still need this?

Check the zinc or phosphorus ppm figure on the oil's technical data sheet. If it already confirms 1,200 ppm or above of phosphorus for flat-tappet use, additional supplementation is unnecessary. Many oils labelled "classic" or "performance" in India do not publish these figures — when in doubt, this additive provides inexpensive insurance.

Is this suitable for Royal Enfield Bullet, Ambassador, or vintage Jeep engines?

Yes — these are precisely the engines Rislone 4405 is designed for. All three platforms use flat-tappet cam designs engineered decades before low-ZDDP API oil standards existed, making supplemental zinc protection highly beneficial for longevity.

How often should I use Rislone 4405?

Add one bottle at every engine oil change for continuous cam and lifter protection. If you are treating a freshly rebuilt engine, use it from the very first oil fill during the break-in period and continue at each subsequent oil change.

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

Yes — naredi.in offers Cash on Delivery across India with free delivery on all orders. Most orders reach metro cities within 3–5 business days and Tier 2/3 cities within 5–7 business days.

Complete Your Kit

Pair Rislone 4405 with these complementary treatments for complete engine protection:

• Rislone Engine Treatment Conditioner and Cleaner (44102): Cleans internal sludge and varnish deposits while conditioning seals — ideal to use one oil change before adding the ZDDP booster so the additive reaches a clean oil system for maximum effectiveness.

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