C
IRRUS
D
ESIGN
S
ECTION
2: L
IMITATIONS
SR20
P
OWERPLANT
L
IMITATIONS
P/N 11934-005
2-7
• N
OTE
•
The correct grade of oil to be used is based on environmental
conditions. If the aircraft is going to be flown into an area that is
much warmer or colder than the aircraft is usually operated in, use
a different viscosity of oil.
During operation, if the oil inlet temperatures are near the
maximum permitted temperatures, then a higher viscosity oil can
help to decrease the temperatures.
Fuel
Fuel Grade .............................. Aviation Grade 100 LL (Blue) or 100 (Green)
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OTE
•
in this Section regarding fuel and fuel storage.
30 °F (-1 °C) to
90 °F (32 °C)
SAE 40
-
SAE 40
-
0 °F (-18 °C) to
70 °F (21 °C)
SAE 30
-
SAE 30
SAE 40
SAE 20W-40
Below 10 °F (-12 °C)
SAE 20
-
SAE 20
SAE 30
SAE 20W-30
a. For additional qualified oil grades and viscosities, refer to the Lycoming Service
Instruction No. 1014.
Recommended Oil Grades
a
(Continued)
Ambient Air
Temperature (SL)
Engine Break-In
After Engine Break-In
Single
Viscosity
Multi-
Viscosity
Single
Viscosity
Multi-
Viscosity
Reissue A