Mobil Delvac 1™ ATF — Synthetic Heavy-Duty Automatic Transmission Fluid

TES-295

Allison Approval

-54°C

Pour Point

168

Viscosity Index

236°C

Flash Point

Full Syn

Formulation

Red

Colour

Allison TES-295 — The Global Standard for Heavy-Duty Automatic Transmissions

Allison Transmission's TES-295 specification is the most stringent and widely recognised approval standard for heavy-duty automatic transmission fluids globally. Allison transmissions are fitted to some of the world's most demanding commercial vehicles — city buses, refuse trucks, military vehicles, mining equipment and heavy haulage. The TES-295 approval means Mobil Delvac 1 ATF has been tested and validated by Allison to meet extended drain capability, long-term friction durability, oxidation resistance and cleanliness requirements under the harshest operating conditions. Using a non-TES-295 fluid in an Allison transmission risks voiding warranty and reducing transmission life significantly.

Enhanced Long-Term Frictional Properties

Maintains precise friction characteristics throughout the extended drain interval — delivering consistent, smooth shifting performance and improved transmission efficiency from the first service fill through to the drain point. Prevents the shift quality degradation associated with conventional ATF fluids over time.

Exceptional Thermal & Oxidation Stability

Keeps transmissions clean under the harshest driving conditions — resisting the deposit formation and varnishing that reduces clutch pack efficiency and valve body performance in heavily loaded, high-temperature automatic transmission applications such as urban bus routes and mine haulage.

Outstanding Film Strength & Anti-Wear

Provides significant wear reduction across gears, clutch packs, bearings and planetary sets — extending transmission service life under the severe mechanical stress of heavy load, frequent shifting and high torque applications in commercial transport and mining operations.

Excellent Low-Temperature Fluidity

Pour Point of -54°C and Brookfield Viscosity of 8,400 mPa.s at -40°C ensure prompt, reliable lubrication at sub-zero ambient temperatures — protecting transmissions during cold-start conditions in cold-climate mining, defence and utility vehicle applications where conventional ATFs thicken excessively.

Exceptional Shear Stability

Viscosity Index of 168 and outstanding shear stability ensure the fluid maintains optimal viscosity even under the severest heavy-duty, high-temperature operating conditions — preventing the viscosity breakdown that increases wear and reduces film thickness in demanding transmission applications.

Compatible with Mineral ATF Fluids

Reduced concern in top-off situations — Mobil Delvac 1 ATF is compatible with conventional mineral ATF fluids, providing flexibility in field service situations and reducing the risk of transmission damage where accidental mixing occurs. Excellent seal material compatibility and leakage control.

Heavy-Duty Trucks & Haulage

Long-haul and regional distribution trucks fitted with Allison, ZF and Voith automatic transmissions where extended drain intervals, consistent shift quality and maximum transmission life are operational priorities.

Urban Buses & Coaches

City buses, intercity coaches and transit vehicles operating frequent stop-start cycles with Allison automatic transmissions — the primary application for which TES-295 was developed and where friction durability and transmission cleanliness are most critical.

Mining & Off-Highway Equipment

Rigid dump trucks, articulated haulers, wheel loaders and other off-highway equipment with automatic transmissions operating in demanding mining environments where fluid durability under extreme load and temperature is critical to uptime.

Utility & Municipal Vehicles

Refuse collection vehicles, fire appliances, emergency response vehicles and municipal equipment with Allison or ZF automatic transmissions requiring reliable, low-maintenance fluid that performs consistently across variable duty cycles.

Voith Turbo Transmissions

Voith DIWA hydrodynamic automatic transmissions fitted to buses and rail vehicles — approved under Voith Service Bulletins 013 and 118 for extended drain use, and Voith fluid specification H55.6336.xx.

Mixed Commercial Fleets

Fleets running multiple OEM transmission brands — Allison, ZF, Voith, MAN and Daimler. The broad approval coverage of Mobil Delvac 1 ATF allows a single fluid specification across the entire automatic transmission fleet, simplifying procurement and reducing lubricant SKU complexity.