About GEAR OILS GL-4 EP 140
GEAR OIL GL-4 EP 140 is a premium quality extreme pressure (EP) gear lubricant specially formulated for heavy-duty automotive and industrial gear systems operating under high load and high temperature conditions. It is blended with high viscosity base oils and advanced EP additives to provide excellent protection against wear, rust, oxidation, and corrosion. This oil is designed to deliver reliable lubrication performance for manual transmissions, differentials, steering gears, and gearboxes requiring API GL-4 performance standards.
The SAE 140 viscosity grade ensures a thick lubricating film that protects gears and bearings during slow-speed, high-torque operations and in hot climatic conditions. GL-4 chemistry is particularly suitable for synchronized manual transmissions and gear systems containing yellow metal components such as brass or bronze synchros.
Applications
- Manual gearboxes and transmissions
- Differential and axle gear systems
- Steering gear assemblies
- Agricultural tractors and farm equipment
- Construction and mining machinery
- Commercial vehicles, trucks, and buses
- Industrial gear drives operating under moderate to heavy loads
- Hypoid and spiral bevel gears requiring API GL-4 oil
- Off-road vehicles and utility equipment
GEAR OIL GL-4 EP 140 is ideal for applications involving:
- High load carrying conditions
- Heavy shock loads
- High ambient temperatures
- Long operating hours
- Slow speed and high torque performance
Specifications
| Property |
Typical Value |
| Product Type |
Extreme Pressure Gear Oil |
| Viscosity Grade |
SAE EP 140 |
| Performance Level |
API GL-4 |
| Base Oil |
Mineral Base Oil |
| Appearance |
Clear Golden / Amber |
| Kinematic Viscosity @100C |
24 32 cSt |
| Viscosity Index |
90 Min |
| Flash Point |
205C 240C |
| Pour Point |
-6C to -12C |
| Additives |
EP, Anti-wear, Anti-rust, Anti-foam, Anti-oxidation |
Features & Benefits
Excellent Extreme Pressure Protection
Protects gears and bearings against scuffing, pitting, and wear under heavy load conditions.
High Thermal Stability
Maintains stable viscosity and lubrication performance even at elevated operating temperatures.
Superior Wear Resistance
Reduces metal-to-metal contact and extends gearbox and differential life.
Smooth Gear Operation
Provides smooth gear shifting and minimizes vibration and gear noise.
Rust & Corrosion Protection
Protects internal metal surfaces against moisture, rust, and oxidation.
Anti-Foaming Performance
Prevents foam formation to maintain continuous lubrication film strength.
Longer Service Life
Resists sludge formation and oil degradation for extended drain intervals.
Seal Compatibility
Compatible with standard gearbox seals and gaskets, helping minimize leakage.
Key Advantages
- Strong oil film for heavy-duty applications
- Reliable lubrication under high torque
- Improved gearbox efficiency
- Reduced maintenance cost
- Longer gear and bearing life
- Suitable for hot weather and rugged operations
- Protects synchronized gear systems
Robust Performance in Extreme ConditionsFormulated for heavy-duty vehicles, GEAR OILS GL-4 EP 140 maintains exceptional stability under demanding conditions. Offering a pour point of -15C and reliable operation up to 120C, it safeguards gear components against wear while ensuring smooth transmissions in both high and low temperatures.
Reliable Protection and CompatibilityThis gear oil excels in anti-corrosion, anti-foaming, and metal compatibility. Thanks to its advanced additive package, it passes copper corrosion and foam tests, making it suitable for systems with seals and gaskets. Its golden yellow hue and characteristic smell stand as markers of quality and performance.
Versatile Application and Easy StorageDesigned for use in various automobile gears and gear-transmission systems, GEAR OILS GL-4 EP 140 is available in bottles, cans, and drums for convenience. Its 2-year shelf life and resilience to environmental factors make it practical to store, provided it is kept in a cool, dry place away from sunlight.
FAQ's of GEAR OILS GL-4 EP 140:
Q: How should I use GEAR OILS GL-4 EP 140 in heavy-duty vehicle gear systems?
A: To use GEAR OILS GL-4 EP 140, consult your vehicle manufacturer's guidelines, drain any old oil, and refill the gear or transmission system to the recommended level. This oil is suitable for heavy-duty gears and ensures optimal lubrication and protection.
Q: What benefits does GEAR OILS GL-4 EP 140 offer for automotive gears?
A: This oil provides enhanced protection against wear, scoring, and corrosion due to its extreme pressure additives. Its superior viscosity stability at high temperatures and anti-foam properties help prolong gear and transmission system life, making it ideal for heavy-duty usage.
Q: When is the optimal time to replace or top up GEAR OILS GL-4 EP 140?
A: Replacement intervals depend on your vehicle usage and manufacturer's recommendations. Generally, it is advised to check and replace the oil at regular maintenance intervals, especially if operating under extreme conditions or after 2 years, in line with the shelf life.
Q: Where should GEAR OILS GL-4 EP 140 be stored for maximum shelf life?
A: For best results, store the oil in a cool, dry place away from direct sunlight and temperature extremes. Ensure containers are tightly closed to prevent contamination and maintain the oil's performance throughout its 2-year shelf life.
Q: What is the process of checking the compatibility of GEAR OILS GL-4 EP 140 with seals and gaskets?
A: GEAR OILS GL-4 EP 140 is formulated to be compatible with seals and gaskets commonly used in gear and transmission systems. Always verify with your equipment manufacturer or conduct a patch test if using with unique or non-standard materials.
Q: How does the product ensure safe operation under extreme temperatures?
A: The oil's high flash point (over 200C) and stable pour point (-15C) allow reliable lubrication across a broad range of operating temperatures, providing consistent performance and protecting gears during both cold starts and high-load conditions.
Q: What are the available packaging types and sizes for GEAR OILS GL-4 EP 140?
A: The product is available in multiple sizes to suit various needs, packaged in plastic bottles, cans, and drums, making it convenient for distributors, manufacturers, suppliers, and end users alike.