Its SAE 90 viscosity offers a stable lubricating film that reduces friction, minimizes component wear, and promotes smooth gear engagement under varying operating temperatures. STAR LUBE Gear Oil SAE 90 API GL-4 also provides excellent resistance to oxidation, rust, corrosion, and foaming, helping extend the life of gears, bearings, and transmission components. It is suitable for commercial vehicles, passenger cars, agricultural equipment, and industrial machinery where an API GL-4 lubricant is recommended.
Key Features & Benefits
- Premium SAE 90 gear oil for dependable lubrication
- Meets API GL-4 performance requirements
- Advanced extreme-pressure (EP) protection against wear and scuffing
- Promotes smooth and quiet gear shifting
- Excellent thermal and oxidation stability
- Protects against rust, corrosion, and gear pitting
- Superior resistance to foaming for consistent lubrication
- Maintains viscosity under demanding operating conditions
- Helps extend the service life of gears, bearings, and transmission components
Applications
STAR LUBE Gear Oil SAE 90 API GL-4 is recommended for:
- Manual transmissions requiring API GL-4 lubricants
- Automotive gearboxes and transaxles
- Hypoid gears operating under moderate service conditions
- Commercial trucks and buses
- Agricultural tractors and farm machinery
- Construction and off-highway equipment
- Industrial gear drives where SAE 90 API GL-4 oil is specified










