Shell Spirax S1 ATF TASA is a high-quality automatic transmission, power steering, and hydraulic fluid designed for heavy-duty vehicles, off-road equipment, and older passenger cars requiring GM Type A Suffix A performance.
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Shell Spirax S1 ATF TASA

Old product name: Shell Donax TM

Shell Spirax S1 ATF TASA is a high-quality automatic transmission, power steering, and hydraulic fluid designed for heavy-duty vehicles, off-road equipment, and older passenger cars requiring GM Type A Suffix A performance.

Category:

Shell Spirax S1 ATF TASA

( Previously named: Shell Donax TM )

Versatile transmission, steering, and hydraulic fluid for off-road and older vehicles

  • Designed for powershift and industrial torque converters

  • Suitable for automatic transmissions and power steering in heavy-duty trucks, off-road equipment, and older passenger cars

  • Also suitable for hydraulic systems in certain off-road applications

  • Provides good oxidation and thermal stability

  • Maintains friction performance under demanding conditions

  • Shear-stable formulation to retain viscosity under stress

  • Offers wear protection and dispersancy for reliable operation

  • Meets General Motors Type ‘A’ Suffix ‘A’ specification

Global Product Code: 001D8294



Application:

Shell Spirax S1 ATF TASA is a high-quality automatic transmission and hydraulic fluid specifically formulated for use in heavy-duty vehicles operating in demanding ‘off-road’ environments. It is suitable for use in automatic transmissions, power steering systems, and certain hydraulic systems of heavy-duty trucks, off-road vehicles, and older passenger cars requiring GM Type ‘A’ Suffix ‘A’ performance.

Performance Features & Benefits:

  • Oxidation & Thermal Stability: Provides reliable performance over extended periods under severe operating conditions.
  • Friction Retention: Maintains effective friction characteristics to support consistent shifting and smooth operation.
  • Dispersancy: Keeps components clean by preventing deposit formation.
  • Shear Stability: Resists viscosity loss under high mechanical stress, maintaining protective film strength.
  • Wear Protection & EP Performance: Protects components from wear and provides enhanced extreme-pressure performance where required.

Main Application Areas:

  • Powershift and industrial torque converters
  • Automatic transmissions and power steering systems in heavy-duty trucks, off-road vehicles, and older passenger cars
  • Hydraulic systems in certain off-road applications

Specifications & Approvals:

  • General Motors Type ‘A’ Suffix ‘A’
  • For additional equipment approvals and recommendations, consult your local Shell Technical Helpdesk.

Usage Instructions:

  • Follow equipment manufacturer recommendations for oil type and service intervals.
  • Consult Shell representatives for applications not explicitly covered here.

Environmental & Safety Information:

  • Shell Spirax S1 ATF TASA is unlikely to present significant health or safety hazards when used correctly and with proper hygiene practices.
  • Avoid skin contact with used oil. Wear gloves and wash thoroughly with soap and water after handling.
  • Do not dispose of used oil into drains, soil, or water. Take used oil to an authorised collection point.
  • Safety Data Sheet (SDS) available via inquiry.

Technical Specifications:

Property Value
Kinematic Viscosity @ 40°C 40 mm²/s (ISO 3104)
Kinematic Viscosity @ 100°C 7.5 mm²/s (ISO 3104)
Viscosity Index 157 (ISO 2909)
Density @ 15°C 880 kg/m³ (ISO 12185)
Flash Point (COC) 170°C (ISO 2592)
Pour Point -42°C (ISO 3016)

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