is this good for modern cars? whats zddp for

Answers one and two are correct. Older engines (classic cars for the most part) with older style tappets. This is an oil additive. Has nothing to to with fuel system ant Cats. nor is their any such precaution from the manufacturer.

Can you use it with syntetic oil?

Yes, Rislone is compatible with and works with all petroleum-based motor oils including conventional, high mileage and synthetic formulas.Eric

Can you use this in atv engines?

Yes..... It is compatible with all motor oils..... and engines..... Use an appropriate amount... Smaller engines of course wouldn't need the entire bottle at once.

How much zinc is in this? The back of the bottle does not tell you the numbers only oil dilutions directions.

Its enough zinc to protect your engine from excessive friction, for one oil cycle or 3000 miles.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

4405 Engine Oil Supplement Concentrate with Zinc Treatment - 11 oz, Yellow

Product ID: 259078258

Details

Brand
Rislone
Liquid volume
11 Fluid
Package information
Bottle
UPC
078615044054
Vehicle service type
Car

⏳Extends engine life with superior lubrication

🔥Reduces friction & wear at startup

⚙️Boosts Zinc & Phosphorous levels

€ 50.34

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Description

⚡ Unlock peak engine power and longevity—don’t let your ride run without it!

FRICTION FIGHTER - Slash startup wear and tear—experience smoother, cooler engine performance from the first ignition.
PISTON PROTECTOR - High-performance formula combats piston scuffing by stabilizing oil viscosity and thermal breakdown.
POWER PACKED ZINC BOOST - Elevate your engine’s defense with ZDDP additives that protect critical components like camshafts and lifters.
LONG LASTING LUBRICATION - Clings to bearings and internal parts where regular oil can’t, ensuring your engine runs longer and stronger.
UNIVERSAL FIT MADE IN USA - Trusted quality in a convenient 11 oz bottle, compatible with virtually all car engines.

Rislone 4405 Engine Oil Supplement is a premium 11 oz concentrate enriched with zinc dialkyldithiophosphate (ZDDP) and phosphorous additives designed to reduce friction, prevent piston scuffing, and extend engine life. Compatible with all car engines, this USA-made formula stabilizes oil performance, especially at startup, protecting vital engine components and ensuring smoother, cooler operation.

Specifications

ASIN	B0075559UY
Automotive Fit Type	Universal Fit
Best Sellers Rank	#70,684 in Automotive ( See Top 100 in Automotive ) #297 in Oil & Fluid Additives
Brand Name	Rislone
Compatible with Vehicle Type	Car
Container Type	Bottle
Customer Reviews	4.7 4.7 out of 5 stars (1,963)
Global Trade Identification Number	00078615044054
Included Components	1 Bottle Rislone 4405 Engine Oil Supplement, 11oz
Item Type Name	Engine Oil Supplement Concentrate with Zinc Treatment - 11 oz.
Item Weight	325 Grams
Liquid Volume	11 Fluid Ounces
Manufacturer	Rislone
Manufacturer Part Number	4405
Model Number	4405
Number of Packs	1
Size	1 Pack
UPC	078615044054
Unit Count	11 Milliliters

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 50.34

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews