Lubrizol 7067c [patched] -

Lubrizol 7067C is a high-performance, solid olefin copolymer (OCP) primarily used as a viscosity modifier (VM) for engine oils. It is engineered to maintain oil thickness and provide "stay-in-grade" performance across extreme temperature variations. Key Technical Specifications Chemical Type Olefin Copolymer (OCP) Physical Form Solid (Pellet/Bale); Liquid concentrate version available Primary Function Viscosity Index Improver (VII) / Thickening Agent Solubility Excellent in both mineral and synthetic base oils Grade Versatility Supports SAE grades from 0W-16 to 20W-50 Performance Review

Chemistry: It is based on a polyisobutylene (PIB) backbone with an average molecular weight typically ranging from 950 to 1300 (high molecular weight). This structure is reacted with maleic anhydride and subsequently reacted with a polyamine.
Physical State: Viscous dark amber liquid.
Base Chemistry: Borated or non-borated succinimide (Specific formulation details are proprietary, but 7067C is known for excellent soot handling).

Thermal Stability

Many EP additives break down at temperatures exceeding 120°C (248°F), releasing hydrogen sulfide (rotten egg smell) or forming corrosive sludge. Lubrizol 7067C exhibits robust stability up to approximately 160°C (320°F), making it suitable for continuously running industrial units that operate hot. lubrizol 7067c

4. Tractor Hydraulic Fluids (UTTO)

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. Lubrizol 7067C is a high-performance, solid olefin copolymer

Safety & Toxicity:

1. Superior Shear Stability (PSSI)

The most significant feature of Lubrizol 7067C is its exceptional resistance to permanent shear loss. In high-stress environments (gear boxes, vane pumps), standard polymers get mechanically chopped into smaller pieces, causing the oil to lose viscosity permanently (shear down). Lubrizol 7067C offers a low Permanent Shear Stability Index (PSSI). This ensures that the viscosity remains within specification for the entire drain interval, not just the first 100 hours of operation. Chemistry: It is based on a polyisobutylene (PIB)

Common Applications: