Mobilube HD-A 85W-90
Mobilube HD-A 85W-90 is a heavy-duty automotive gear lubricant formulated using high-performance base oils and an advanced additive system. It is engineered for use in commercial transmissions, axles and final drives where extreme pressures, shock loading and severe operating conditions are encountered. The product meets API GL-5 performance requirements, ensuring dependable protection and performance in demanding environments.
One of the key advantages of Mobilube HD-A 85W-90 is its excellent load-carrying capability and wear protection. The formulation helps protect gears and bearings from wear, scuffing and scoring under both low-speed/high-torque and high-speed conditions, particularly in heavily loaded rear axles. This contributes to extended equipment life and reduced maintenance costs.
Mobilube HD-A 85W-90 also provides strong thermal and oxidation stability. The lubricant resists breakdown at elevated temperatures, helping minimise deposit formation and maintain clean internal components. This ensures consistent performance and supports extended drain intervals, improving overall productivity.
Another important benefit is its excellent protection against rust and corrosion. The lubricant safeguards metal surfaces, including steel and copper alloys, ensuring long-term durability and reliable operation in harsh environments. It is also compatible with typical seals and gaskets, helping reduce leakage and contamination.
Mobilube HD-A 85W-90 offers multipurpose capability, allowing it to be used across a range of drivetrain applications. This helps reduce the number of lubricants required, simplifying inventory management and lowering operational costs.
Mobilube HD-A 85W-90 is recommended for heavy-duty manual transmissions, axles and final drives in passenger cars, trucks and commercial vehicles, as well as off-highway equipment in construction, mining, quarrying and agriculture. It is also suitable for gearboxes, steering gears and other industrial applications involving hypoid gears operating under severe conditions.
Physical characteristics include SAE 85W-90 viscosity grade with kinematic viscosity of approximately 184 mm²/s at 40°C and 17 mm²/s at 100°C. Mobilube HD-A 85W-90 has density of approximately 0.90 kg/L at 15°C, flash point of approximately 222°C and pour point of approximately −24°C. The lubricant delivers excellent durability, strong protection and long service life in demanding heavy-duty applications.

