8-5 SERVICING
LUBRICATING SYSTEM
Oil Specications
Oil conforming to the current revision or supplement of Pratt & Whitney
Canada “Service Bulletin Number 1001” must be used. The following table
lists some of the approved synthetic engine lubricating oils for the PT6A-34.
Brand Specication / Type Temperature Limits
Aeroshell Turbine Oil 750 CPW202 / Type 1 Above 0°F (-18°C)
Royco Turbine Oil 750 CPW202 / Type 1 Above 0°F (-18°C)
Castrol 98 CPW202 / Type 1 Above 0°F (-18°C)
BP Turbo Oil 274 CPW202 / Type 1 Above 0°F (-18°C)
Turbonycoil 35M CPW202 / Type 1 Above 0°F (-18°C)
Aeroshell Turbine Oil 500
PWA 521 / Type 2
MIL-PRF-23699F
Above -40°F(-40°C)
Royco Turbine Oil 500
PWA 521 / Type 2
MIL-PRF-23699F
Above -40°F(-40°C)
Mobile Jet Oil II
PWA 521 / Type 2
MIL-PRF-23699F
Above -40°F(-40°C)
Castrol 5000
PWA 521 / Type 2
MIL-PRF-23699F
Above -40°F(-40°C)
BP Turbo Oil 2380
PWA 521 / Type 2
MIL-PRF-23699F
Above -40°F(-40°C)
Turbonycoil 525-2A
PWA 521 / Type 2
MIL-PRF-23699F
Above -40°F(-40°C)
Turbonycoil 600
PWA 521 / Type 2
MIL-PRF-23699F
Above -40°F(-40°C)
Table 8-2 – Approved Engine Oils
NOTE: The Type 2 oils should be used when operation of the aircraft
results in frequent cold soaking at ambient temperatures of 0°F (-18°C)
or less. Refer to the current revision of Pratt & Whitney Canada “Service
Bulletin No. 1001” for additional oils which may be approved.