SECTION 1
GENERAL
Fuel Capacity:
Standard Tanks:
Total Capacity: 43 gallons.
Total Capacity Each Tank: 21.5 gallons.
Total Usable: 40 gallons.
Long Range Tanks:
Total Capacity: 54 gallons.
Total Capa,city Each Tank: 27 gallons.
Total Usable: 50 gallons.
NOTE
CESSNA
MODEL 172N
To ensure maximum fuel capacity when refueling and
minimize cross-feeding when parked on a sloping surface,
place the fuel selector valve in either LEFT or RIGHT
position.
OIL
Oil Grade (Specification):
MIL-L-22851 Ashless Dispersant Oil: The airplane was delivered from
the factory with SAE 20W-50 ashless dispersant aircraft engine oil.
Ashless dispersant aircraft engine oil must be used for all operat
ing conditions.
NOTE
Use a minimum of 75% power for cruise during the first 50
hours of operation or until oil consumption stabilizes.
Service the engine oil system with aviation ashless dis
persant oil only.
Required Viscosity for Temperature Range:
MIL-L-22851 Ashless Dispersant Oil:
SAE 20W-50 or SAE 15W-50 for all temperatures.
NOTE
If multi-viscosity ashless dispersant aircraft engine oil is
not available, the following ashless dispersant aircraft
engine oil may be used.
SAE 50 above 60
°
F (16
°
C).
SAE 40 between 30
°
F (-1
°
C) and 90
°
F (32
°
C).
SAE 30 between 0
°
F (-18
°
C) and 70
°
F (21
°
C).
SAE 20W-30 below 0
°
F (-18
°
C) to 70
°
F (21
°
C).
Oil Capacity:
Sump: 6 Quarts.
Total: 7 Quarts (if oil filter installed).
1 July 1979
1-4
Revision 1 - 15 November 1979