Mobil Delvac 1 Transmission Fluid 75W-80
Mobil Delvac 1 Transmission Fluid 75W-80 is an extra high-performance manual transmission lubricant engineered for modern European heavy-duty transmissions used in on-highway commercial vehicles. Formulated with a blend of advanced synthetic base oils and a high-performance additive system, this lubricant delivers excellent shift quality, strong wear protection and reliable performance across a wide range of operating conditions. It is specifically designed for transmissions requiring API GL-4 performance and approvals such as ZF TE-ML 02L and MAN 341 Typ Z4.
One of the key advantages of Mobil Delvac 1 Transmission Fluid 75W-80 is its excellent load-carrying and anti-wear performance. The advanced additive system provides strong protection against wear under heavy loads and demanding operating conditions, helping extend the life of gears, bearings and synchronisers. This ensures reliable operation and reduces maintenance requirements in heavy-duty transmission systems.
Mobil Delvac 1 Transmission Fluid 75W-80 also delivers excellent frictional characteristics for smooth gear shifting. The formulation is designed to provide consistent synchroniser performance, enabling smooth and precise gear engagement across a wide range of operating conditions. This contributes to improved driver comfort and efficient transmission operation.
Another important benefit of Mobil Delvac 1 Transmission Fluid 75W-80 is its outstanding thermal and oxidation stability. The lubricant resists degradation at high operating temperatures, helping prevent deposit and lacquer formation. This keeps transmission components clean and supports extended drain intervals, reducing operating costs and improving reliability.
Mobil Delvac 1 Transmission Fluid 75W-80 also provides excellent protection against corrosion, particularly for copper and its alloys. This is critical for protecting synchronisers and other sensitive components, ensuring long service life and consistent performance. The lubricant also offers excellent shear stability, maintaining viscosity and film strength even under severe operating conditions.
Mobil Delvac 1 Transmission Fluid 75W-80 also demonstrates outstanding low-temperature fluidity. The fluid flows easily in cold conditions, allowing rapid lubrication and smooth shifting during start-up. This reduces wear and ensures reliable operation in a wide range of climates, from cold starts to high-temperature operation.
Mobil Delvac 1 Transmission Fluid 75W-80 is recommended for use in heavy-duty manual transmissions in trucks, buses and vans, as well as gear cases requiring API GL-4 performance. It meets a wide range of specifications including ZF TE-ML 01L, 02L and 16K, and MAN 341 Typ Z4 and E3, making it suitable for modern commercial vehicle transmissions requiring extended service intervals.
Physical characteristics include a kinematic viscosity of approximately 57 mm²/s at 40°C and 9.6 mm²/s at 100°C, with a viscosity index of around 151. Mobil Delvac 1 Transmission Fluid 75W-80 has a density of approximately 0.86 g/cm³ at 15°C, a flash point of approximately 230°C and a pour point of approximately −39°C. The fluid also provides a Brookfield viscosity of approximately 80,000 mPa·s at −40°C, supporting reliable lubrication performance and smooth transmission operation across a wide range of operating conditions.




