Mobil Delvac 1 Axle 75W-85 Performance
Mobil Delvac 1 Axle 75W-85 Performance is a high-performance automotive gear lubricant specifically developed for heavy-duty commercial vehicle axles. Formulated using advanced base oils combined with the latest additive technology, this lubricant is engineered to deliver outstanding protection and performance in hypoid rear axles operating under extreme pressure and shock loading conditions. It is particularly suited for applications requiring Mercedes-Benz MB-Approval 235.31, ensuring compatibility with modern axle designs and demanding OEM requirements.
One of the key advantages of Mobil Delvac 1 Axle 75W-85 Performance is its excellent load-carrying capability. Heavy-duty axles often operate under severe mechanical stress, including high torque and shock loading. The advanced additive system provides strong extreme pressure protection, helping to prevent wear and damage to gears and bearings. This ensures long component life and reliable axle performance in demanding commercial applications.
Mobil Delvac 1 Axle 75W-85 Performance also offers exceptional thermal and oxidation stability. Under high operating temperatures, conventional lubricants can degrade, leading to deposits and reduced performance. This formulation resists thermal breakdown, helping maintain lubricant integrity, reduce sludge formation and keep axle systems clean. As a result, it supports extended service intervals and reduces maintenance requirements.
Another important benefit of Mobil Delvac 1 Axle 75W-85 Performance is its excellent low-temperature performance. The lubricant has a high viscosity index and very low pour point, allowing it to remain fluid in cold conditions. This ensures rapid lubrication during start-up and helps protect components from wear during low-temperature operation. At the same time, it maintains sufficient film strength at high temperatures, providing consistent protection across a wide operating range.
Mobil Delvac 1 Axle 75W-85 Performance also contributes to improved efficiency by helping reduce friction and operating temperatures within the axle. Lower operating temperatures compared to conventional gear oils can improve durability and enhance overall drivetrain efficiency. The lubricant is suitable for use in hypoid differentials and transaxles where an API GL-5 oil is not required but high-performance protection is still essential.
Mobil Delvac 1 Axle 75W-85 Performance is approved against Mercedes-Benz MB 235.31 and meets additional requirements including Detroit Fluids Specification 93K219.03 and DTFR 12B120. It also meets or exceeds API GL-5 performance levels, making it suitable for a wide range of heavy-duty axle applications.
Physical characteristics include a kinematic viscosity of approximately 69.5 mm²/s at 40°C and 11.8 mm²/s at 100°C, with a viscosity index of around 167. Mobil Delvac 1 Axle 75W-85 Performance has a density of approximately 880 kg/m³ at 15.6°C, a flash point of approximately 202°C and a pour point of approximately −42°C. The lubricant also provides a Brookfield viscosity of approximately 77,000 mPa·s at −40°C and a Total Acid Number of approximately 3.88 mgKOH/g, supporting reliable lubrication performance and protection across a wide range of operating conditions.
