Aeroshell W80 is a lightweight aircraft oil that is frequently operated during the colder months.
Specification:
SAE J 1899 (Grades SAE 30, 40, 50 and 60 respectively)
Russian: MS-14
French: AIR 3570
NATO: 0-123 Obsolte
Textron Lycoming: 301F
Teledyne Continental: MHS 24B
Pratt & Whitney: Service Bulletin 1183-S