AeroShell Oil W 120 is an SAE 60 mineral ashless dispersant oil formulated to provide excellent wear protection, sludge control, and spark plug cleanliness for certified four-stroke aircraft piston engines in high-temperature conditions.
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Shell AeroShell Oil W 120

AeroShell Oil W 120 is an SAE 60 mineral ashless dispersant oil formulated to provide excellent wear protection, sludge control, and spark plug cleanliness for certified four-stroke aircraft piston engines in high-temperature conditions.

Category:

Shell AeroShell Oil W 120

Mineral ashless dispersant oil for certified aircraft piston engines

  • Developed using non-metallic additives and high viscosity index base oils

  • Prevents metallic ash buildup—reducing risk of deposits and pre-ignition

  • Enhances internal cleanliness and keeps engines sludge-free

  • Helps reduce oil consumption and supports engine longevity (TBO)

  • Offers strong anti-wear protection for heavily stressed engine components

  • Most commonly used in radial engines under warm weather conditions

  • Suitable for turbocharged and fuel-injected four-stroke aircraft engines

  • May be used during engine break-in where permitted by the manufacturer

  • Not for automotive engines unless specifically approved

Global Product Code: 001A0075



Application:

AeroShell Oil W 120 is a single-grade SAE 60 mineral ashless dispersant oil designed for use in certified four-stroke (reciprocating) aircraft piston engines. It offers strong high-temperature protection and internal cleanliness, particularly suited to radial engines operating in hot ambient environments.

Performance Features & Benefits:

  • Clean Combustion: Ashless formula prevents deposit formation in combustion chambers and on spark plugs.
  • Engine Longevity: Supports extended Time Between Overhaul (TBO) through wear and sludge control.
  • Anti-Wear Protection: Shields highly stressed engine parts from scuffing and thermal degradation.
  • Stable Viscosity: Maintains lubricity and flow characteristics under demanding heat loads.

Main Application Areas:

  • Certified four-stroke (four-cycle) aircraft piston engines
  • Radial engine operations in warm climates
  • Fuel-injected and turbocharged engines
  • Break-in use when permitted by engine manufacturers

Specifications & Approvals:

  • SAE J1899 SAE Grade 60 (replaces MIL-L-22851D)
  • Joint Service Designation: OMD-370
  • Textron Lycoming: 301F
  • Continental: MHS 24B
  • Pratt & Whitney: Service Bulletin 1183
  • Curtiss Wright & Franklin Engines: Refer to applicable bulletins

Environmental & Safety Information:

  • This product poses minimal health risks when used with proper hygiene standards.
  • Use gloves when handling used oil. Wash thoroughly after skin contact.
  • Return used oil to a certified collection point. Do not release into the environment.
  • Safety Data Sheet (SDS) available via inquiry

Technical Specifications:

Property Typical Value Method
SAE Viscosity Grade 60 SAE J1899
Density @ 15°C 891 kg/m³ ASTM D4052
API Gravity 27.2 ASTM D287
Kinematic Viscosity @ 40°C 306 mm²/s ASTM D445
Kinematic Viscosity @ 100°C 23.8 mm²/s ASTM D445
Viscosity Index > 96 ASTM D2270
Pour Point < -21°C ASTM D5949
Flash Point > 260°C ASTM D92
Total Acid Number < 0.5 mgKOH/g ASTM D664/974
Sulphur Content 0.51% ASTM D4951
Copper Corrosion (3h @ 100°C) 1a ASTM D130
Ash Content < 0.004% ASTM D482
Trace Sediment Passes ASTM D2273
Foaming Tendency Passes ASTM D892
Trace Metal Content Passes ASTM D4951

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