1.What is the zinc butyl octyl primary alkyl dithiophosphate ?
Zinc Butyl Octyl Primary Alkyl Dithiophosphate, commonly known as ZDDP, is a type of multifunctional additive used in lubricants, particularly engine oils, to provide antiwear, antioxidation, and extreme pressure (EP) properties. It is a widely used and effective additive for protecting metal surfaces in high-stress applications, such as in internal combustion engines.
ZDDP is a chemical compound derived from a combination of primary alkyl dithiophosphoric acid and zinc oxide. It contains both phosphorus and sulfur elements, which contribute to its antiwear and extreme pressure characteristics.
2.The primary functions of ZDDP in lubricants are:

①Antiwear Protection
ZDDP forms a protective film on metal surfaces, which helps reduce friction and wear during metal-to-metal contact. This is especially crucial in high-pressure areas such as engine components (e.g., camshafts, lifters, and valve train parts) that experience significant mechanical loads.
②Oxidation Inhibition
ZDDP helps to prevent the oxidation of the lubricant, which can lead to the formation of sludge and varnish deposits. By reducing oxidation, it enhances the oil’s longevity and maintains its performance over time.
③Extreme Pressure (EP) Protection
In gear oils and other applications where high pressure is present, ZDDP acts as an EP additive, protecting metal surfaces from excessive wear and damage under extreme operating conditions.
3.What is the T202 zinc butyl octyl primary alkyl dithiophosphate ?
T202 is Zinc Butyl Octyl Primary Alkyl Dithiophosphate. This product features favorable anti-oxidation and anti-corrosion performance and extreme pressure anti-wear property.
It can effectively protect engine bearings from corrosion, and prevent oil viscosity growth due to oxidation in a high temperature. The product is light in color and nice in oil solubility and additive compatibility. It can be widely used in various industrial lubricating oils such as gear oil and hydraulic oil. Combined with detergents and dispersants, the product can be used to produce all grades of engine oils.

4.What do we need to pay attention to use zinc butyl octyl primary alkyl dithiophosphate ?
zinc butyl octyl primary alkyl dithiophosphate has been widely used in engine oils for many years and has proven to be effective in protecting engines and extending their life. However, it’s worth noting that the use of ZDDP in engine oils has become a topic of discussion in recent years due to its potential impact on emissions control systems in modern vehicles equipped with catalytic converters and emission reduction technologies.
The high phosphorus content in ZDDP can lead to the formation of ash deposits on the catalyst surfaces, affecting their efficiency over time. As a result, some newer engines and emission control systems may require lower levels of ZDDP or alternative additives to address this concern.
In summary, Zinc Butyl Octyl Primary Alkyl Dithiophosphate is a crucial additive in engine oils and other lubricants, providing antiwear, antioxidation, and extreme pressure protection. It has been widely used to protect engine components, but its application in modern vehicles may require careful consideration to ensure compatibility with emissions control systems. Always follow the manufacturer’s recommendations and industry guidelines when using ZDDP in lubricants.
If you are interested in the T202 zinc butyl octyl primary alkyl dithiophosphate, I recommend reaching out to us,we can provide more detailed information about our product offerings and may assist in selecting the most suitable ZDDP for your lubricant application.

ZDDP stands for Zinc Dialkyl Dithiophosphate, and it is a type of chemical compound commonly used as an anti-wear additive in lubricating oils. T202 zinc butyl octyl primary alkyl dithiophosphate, refers to a variation of ZDDP with a particular alkyl group composition.
Zinc Butyl Octyl Primary Alkyl Dithiophosphate:
- Zinc: Indicates that the compound contains zinc, which is a key component in ZDDP additives.
- Butyl: Refers to the butyl alkyl group in the compound. The specific alkyl group influences the compound’s properties and performance.
- Octyl: Refers to the octyl alkyl group in the compound. Like butyl, octyl is part of the alkyl composition.
- Primary Alkyl: Indicates that the alkyl groups are primary, meaning they are attached to the zinc atom directly.
Function:
ZDDP additives, including variations like T202, function as anti-wear and extreme pressure additives in lubricants. They form a protective film on metal surfaces, reducing friction and preventing wear in high-pressure conditions. ZDDP is commonly used in engine oils, particularly in applications with sliding or high-pressure contact points.
It’s important to note that formulations may vary between manufacturers, and the specific properties of T202 would depend on the detailed composition of its alkyl groups and other components. For precise information about T202 or any specific ZDDP formulation, it is recommended to refer to the technical data sheet or contact the manufacturer directly.

