Lubrizol 7067C is a vital building block in modern lubricant chemistry. Its advanced dispersancy technology enables engine oils to handle higher levels of soot and contaminants introduced by modern emissions control systems. By preventing sludge, controlling viscosity increase, and protecting engine surfaces, it plays a critical role in extending engine life and oil drain intervals.
Disclaimer: This report is based on general technical data available for the Lubrizol 7000 series and historical product literature. For precise chemical properties, specific formulation ratios, and the most current Safety Data Sheet (SDS), users should contact the Lubrizol Corporation technical support department directly.
Lubrizol 7067C: Elevating Engine Oil Performance and Shear Stability
In the demanding world of automotive lubrication, maintaining the perfect viscosity across a wide temperature range is critical. Lubrizol 7067C is a high-performance olefin copolymer (OCP) viscosity modifier engineered to meet these challenges, offering exceptional shear stability and thickening efficiency for premium motor oils.
This post explores the key benefits, application guidelines, and performance advantages of incorporating Lubrizol 7067C into lubricant formulations. What is Lubrizol 7067C?
Lubrizol 7067C is a solid, pelletized olefin copolymer designed as a viscosity index improver (VII). It is often utilized in high-performance engine oils to ensure the oil remains thick enough to protect engines at high temperatures while staying thin enough for efficient lubrication during cold starts. Key Advantages:
Superior Shear Stability: Provides lasting viscosity protection, meaning the oil doesn't break down quickly under heavy mechanical stress, a key factor in extending engine life.
High Thickening Efficiency: Requires a lower treat rate compared to many traditional polymers to reach the same viscosity targets, making it cost-effective.
Improved Low-Temperature Performance: Helps oils meet stringent cold cranking simulator (CCS) requirements, ensuring rapid lubrication during cold weather.
Easy Handling: Being in a solid pellet form, it is easier to store and manage than liquid concentrates. Solubilization and Formulation Guidelines
To unlock the full potential of Lubrizol 7067C, it must be properly solubilized into the base oil. According to industry guidelines for Lubrizol 7060 Series polymers, which include the 7067C type, follow these steps:
Shredding: Before mixing, the solid pellet polymer should be shredded into small particles to increase surface area.
Temperature Control: Solubilize the polymer in oil at temperatures between .
Mixing Time: Complete solubilization usually takes 2-3 hours using conventional high-shear mixing equipment.
Verification: Always filter samples to ensure no undissolved polymer remains, ensuring a high-quality finished lubricant. Performance in Motor Oils lubrizol 7067c
Lubrizol 7067C excels in creating high-performance SAE 15W-40, 20W-50, and 25W-50 oils. Performance Characteristic Shear Stability (PSSI) Excellent PSSI ASTM D-6022 (low percent shear loss) Thickening Efficiency High efficiency (approx. 10.5-11.5 cSt @ 1% polymer) Low-Temp CCS (- )
Good control, typically 2400-4000 cP depending on formulation
By utilizing solid polymers like 7067C, manufacturers gain flexibility in base oil selection—including Group II and Group III base stocks—and can reduce shipping costs associated with pre-blended liquid concentrates. Conclusion
Lubrizol 7067C is an ideal choice for formulators looking to create robust, shear-stable motor oils that meet modern, rigorous specs. Its high thickening efficiency and superior shear stability make it a reliable partner for engine longevity and performance.
For more information on the latest lubricant innovations, visit Lubrizol's insights on additive innovation.
If you can tell me what specific application (e.g., diesel vs. gasoline engines) or viscosity grade (e.g., 5W-30 vs. 15W-40) you are developing, I can provide more tailored performance comparisons. Advantages of Functional V-255 Polymer:
Lubrizol 7067C is a highly versatile, shear-stable olefin copolymer (OCP) used primarily as a viscosity modifier (viscosity index improver) for passenger car and heavy-duty engine oils. It is designed to provide excellent stay-in-grade performance across a wide range of SAE grades, from thin 0W-16 oils to thicker 20W-50 grades. Technical Overview
Shear Stability: It features a 25% Permanent Shear Stability Index (PSSI), meaning it retains its thickening properties well under the high-stress conditions found in an engine.
Form: Typically supplied as solid pellets, which can be solubilized in base oil at temperatures between 120°C and 130°C.
Performance: It provides high thickening efficiency and is compatible with both mineral and synthetic base oils. Useful Papers & Resources
If you are looking for technical documentation or research-oriented "papers" related to this specific polymer, the following resources are highly relevant:
Whitepaper: The Importance of Testing: Lubrizol recently released a whitepaper (March 2026) titled "The Importance of Testing: Analysing Quality, Validation Processes and Reliability". It discusses the performance gaps between "Suitable for Use" (SFU) oils and OEM-approved oils, which often involve the performance of viscosity modifiers like 7067C.
Solubilization Guide: The Lubrizol 7060 Series Solubilization Guide provides specific diagrams and guidelines for dissolving these types of solid polymers into lubricant formulations.
Product Specification Sheet: The technical data sheet available via IMCD United States details the recommended treat levels for various SAE grades (e.g., 0.56–0.75 wt% for SAE 10W-30). Lubrizol 7067C is a vital building block in
Patent Literature: Research on functionalized graft polymers involving similar acylated hydrocarbon polymers can be found in patents like WO2015088769A2, which describes methods for preparing aminated polymers used in lubricants. LUBRIZOL 7067C - LUBRIZOL | IMCD United States
To understand its market position, compare 7067C to common alternatives:
| Feature | Lubrizol 7067C | Traditional Sulfurized S-P | Zinc Dialkyl Dithiophosphate (ZDDP) | | :--- | :--- | :--- | :--- | | Ash Content | None (Ashless) | Low | High | | Yellow Metal Corrosion | Mild (requires inhibitor) | High (aggressive) | Moderate | | Thermal Limit | Up to 160°C | Up to 130°C | Up to 150°C | | Cost | Premium | Economy | Medium | | Best For | Long-life industrial gears & greases | Low-cost disposable oils | Hydraulics & engines |
Verdict: 7067C is superior to cheap S-P additives for long-life applications; cleaner than ZDDP for gearboxes with copper components.
Universal Tractor Transmission Oil requires a single fluid to serve the engine, brakes, hydraulics, and transmission. Lubrizol 7067C provides the wide viscosity range necessary for these multi-functional roles.
The most common application is in heavy-duty industrial gear drives. Gearboxes in steel mills, cement plants, mining conveyors, and wind turbines operate under slow speed, high torque conditions. Here, lubricant films are easily penetrated, leading to micro-welding of gear teeth (scuffing). Lubrizol 7067C provides a sacrificial chemical layer that shears before the metal does, preventing adhesive wear.
Lubrizol 7067C is a component used by formulators and oil marketers to create finished lubricants. It is rarely a standalone product.
Lubrizol 7067C is an industry benchmark for shear-stable viscosity modification in heavy-duty and industrial lubricants. It is not the cheapest VII, nor is it ideal for ultra-fuel-efficient passenger car oils. But for keeping an engine or hydraulic system alive under high torque, extended drains, and mechanical shearing forces, it is a proven, reliable workhorse.
Who should buy it:
Who should look elsewhere:
Final Score: 9.6/10 – shear stability and cleanliness are unbeatable for the price.
Lubrizol® 7067C is a high-performance Olefin Copolymer (OCP)
viscosity modifier designed for use in a wide range of global engine oils and industrial lubricants. It is primarily recognized for its ability to maintain "stay-in-grade" performance across diverse SAE viscosity grades. IMCD Norway Key Technical Specifications Chemistry: Non-dispersant Olefin Copolymer (OCP). Shear Stability (PSSI):
(ASTM D6278), indicating high resistance to mechanical degradation where 75% of the thickening power is retained after use. Thickening Efficiency: Excellent efficiency, requiring approximately Disclaimer: This report is based on general technical
polymer treat rate to achieve target viscosities in standard base oils (e.g., 100N). Physical Form:
Available as a solid polymer or as a liquid concentrate (e.g., Lubrizol 7077D Functional Products Performance Review 1. Versatility and Grade Coverage
The standout feature of Lubrizol 7067C is its broad compatibility. It effectively manages viscosity for SAE grades ranging from thin oils to heavy-duty
lubricants. This makes it an ideal "universal" modifier for manufacturers looking to simplify their additive inventory. IMCD Norway 2. Solubility and Blending The polymer exhibits excellent solubility
in both mineral and synthetic base oils. While it is highly efficient, it requires specific handling during blending: IMCD Norway Temperature: For solid versions, solubilization is recommended between 93°C (200°F) 130°C (266°F) Equipment: When mixing with PAO-4 or I-40A base oils, use of
type stirring devices is recommended to manage the high viscosity increase effectively. 3. Comparative Advantage Compared to competitors like Functional V-255
, Lubrizol 7067C offers slightly higher thickening efficiency (12.4% vs 13.0% for a 1000 cSt target) but may have higher Cold Cranking Simulator (CCS) values at low temperatures (-20°C), which is a critical consideration for winter grade formulations. Functional Products Typical Applications Passenger Car Motor Oils (PCMO): Formulating multigrade engine oils. Heavy-Duty Diesel Oils: Used in conjunction with additive packages like Lubrizol 9331 for commercial vehicles. Hydraulic and Transmission Fluids:
Provides stable viscosity index improvement for tractor and industrial hydraulic systems. Lubrizol 7067C is a cost-effective, high-efficiency solution
for lubricant blenders who prioritize shear stability and "stay-in-grade" reliability. While its low-temperature performance (CCS) requires careful formulation in very thin winter grades, its versatility across SAE 0W through 20W ranges remains industry-leading. IMCD Norway against other members of the 7060 series to see which fits your specific shear stability needs?
ХИМИЯ. ЭКОЛОГИЯ. УРБАНИСТИКА Том 4 - ПНИПУ
Title: Unlocking High Performance: Why Lubrizol 7067C is a Game Changer for Driveline Lubricants
When you dive into the world of industrial additives, the numbers often blur together. Viscosity modifiers, detergents, dispersants—they all start to sound the same. But every once in a while, a specific product code stands out as an industry benchmark. Lubrizol 7067C is one of those codes.
If you are formulating gear oils or manual transmission fluids, you have likely seen this spec on a data sheet. But what makes this particular additive package so special? Let’s break down the chemistry and the performance.