The high-viscosity SAE 140 formulation offers outstanding load-carrying capability, excellent thermal stability, and long-lasting lubrication for demanding applications. It effectively protects gears and bearings from scuffing, corrosion, rust, oxidation, and foaming, helping maintain smooth power transmission while extending component life. STAR LUBE Gear Oil SAE 140 API GL-4 is suitable for commercial vehicles, agricultural equipment, construction machinery, and industrial gear systems where API GL-4 performance is specified.
Key Features & Benefits
- Premium SAE 140 formulation for heavy-duty gear protection
- Meets API GL-4 performance specifications
- Excellent extreme-pressure (EP) and anti-wear performance
- High load-carrying capacity for demanding operating conditions
- Superior resistance to oxidation and thermal degradation
- Protects against rust, corrosion, and gear pitting
- Reduces friction for smoother and quieter gear operation
- Excellent shear stability to maintain viscosity during service
- Minimizes foaming for consistent lubrication performance
- Extends the service life of gears, bearings, and transmission components
Applications
STAR LUBE Gear Oil SAE 140 API GL-4 is recommended for:
- Manual transmissions requiring API GL-4 gear oil
- Automotive gearboxes and transaxles
- Commercial trucks, buses, and fleet vehicles
- Agricultural tractors and farm equipment
- Construction, mining, and off-highway machinery
- Industrial gear drives and reduction units
- Final drives and differentials operating under moderate to heavy-duty service










