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Rislone
Rislone Hy-per Lube Zinc ZDDP Supplement (4405) 325ml | Engine Wear Protection for India
ZDDP zinc supplement for flat-tappet and classic engines. Critical protection for pre-1990 engines.
volume
325ml
application
Engine oil
active ingredient
ZDDP (Zinc Dialkyl Dithiophosphate)
₹2,900
+ 18% GST
Total incl. GST: ₹3,422
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 Hy-per Lube Zinc?
ZDDP (Zinc Dialkyl Dithiophosphate) is the primary anti-wear additive in engine oil. Modern oils have reduced ZDDP levels due to catalytic converter compatibility requirements. However, pre-1990 engines with flat-tappet camshafts (rather than roller tappets) depend on high ZDDP levels for camshaft and lifter protection. Running a classic engine on modern low-ZDDP oil without supplementation accelerates camshaft wear significantly. The Hy-per Lube ZDDP supplement restores the ZDDP level to what pre-1990 engines were designed to run on.
How It Works
The 3-step process explained
1
ZDDP Film Formation
ZDDP molecules form a protective film on metal surfaces under high contact pressure — specifically the flat-tappet/camshaft interface.
2
Extreme Pressure Protection
At the high contact pressures generated by flat-tappet valve trains, ZDDP prevents metal-to-metal contact.
3
Break-in Protection
During engine break-in, surfaces are rough and contact pressures are highest — ZDDP is critical in this phase.
How To Use
Step-by-step instructions
Add to fresh engine oil at oil change — 325ml per 4–5L of engine oil.
Compatible with all mineral and synthetic oils.
Required at every oil change for flat-tappet classic engines.
Do not use in motorcycles with wet clutch — ZDDP can cause clutch slip.
Compatibility
Works with these vehicles
Compatible vehicles — common examples. If your vehicle is not listed, ask Arjun below — it almost certainly still works.
Flat-tappet classic engines
ZDDP protection essential
Engine Oil
Rebuilt or freshly rebuilt engines
Break-in protection
Engine Oil
Pre-1990 vehicles
Older engines need ZDDP
Engine Oil
Don't see your vehicle? Ask Arjun — tell him your make, model and year for a direct answer.
Not suitable for: Modern engines with roller rockers — ZDDP already in modern oil formulations. Motorcycles with wet clutch.
How It Compares
vs other options
This is a specialist product for pre-1990 classic vehicles with flat-tappet engines. Modern engines (post-1990 with roller tappets) do not require ZDDP supplementation — their oil already contains appropriate levels.
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.
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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.
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