AeroShell Oil 100 is a single‑grade SAE 50 mineral oil formulated for aviation piston engines, especially suited for engine break‑in use. It’s blended from high viscosity‑index base stocks, with only minimal additive content—namely a pour‑point depressant (for improved low‑temperature flow) and an anti‑oxidant. It contains no dispersant additives

• AeroShell Oil W100 is a new single grade oil that combines the single grade, ashless dispersant performance found in AeroShell Oil W100 and the anti-wear/anti-corrosion additives of AeroShell Oil W15W-50 Multigrade.
• AeroShell W Oils are intended for use in four-stroke (four-cycle) certified reciprocating piston engines, including fuel-injected and turbocharged engines.
• AeroShell Oil W100 or AeroShell Oil W 15W-50 are the common choices for most operators of Lycoming and Continental flat engines.
• Promote engine cleanliness Help keep engines sludge free Help reduce oil consumption Help engines reach TBO (Time Between Overhaul) Protect highly stressed engine parts against scuffing and wear.

Key Features

• Blended from selected high viscosity mineral base oils.
• Contains AeroShell™ proven W Oils additive package.
• Additional anti-wear additives (containing Lycoming additive LW 16702).
• Additional anti-corrosion additives.
• Fully compatible with other approved aircraft piston engine oils.

Specifications

• U.S. Approved – SAE J-1899 Grade 50 replaces MIL-L-22851D
• British Approved –  SAE J-1899 Grade 50
• French AIR – 3570 (Grade 50)
• Russian – MS-20
• NATO Code – O-125 Obsolete
• Joint Service Designation – OMD-250
• Textron Lycoming – 301F
• Pratt & Whitney Service Bulletin – 1183-S