Cessna 172N - Page 153

CESSNA
MODEL 172N
SECTION
8
HANDLING, SERVICE
&
MAINTENANCE
ill[IL-L-22851 Ashless
Dispersant Oil:
This oil must
bg used
after
the
first 50 hours
or oil
consumption
has stabilized.
SAE 40
or
SAE
50 above
16oC
(60oF).
SAE
40
between
-1"C
(30"F)
and
32"C
(90.F).
SAE 30
or
SAE
40
between
-18oC
(0"F)
and
21oC
(?0.F).
SAE 30
below
-12oC
(10oF).
CAPACITY
OF ENGINE
SUMP
--
6
Quarts.
Do
not operate
on
less
than 4
quarts.
To minimize
loss
of oil
through
breather,
fill to 5
quart
level for normal
flights
of less
than
3 hours.
For
extended
flight,
fill
to 6
quarts.
These
quantities
refer
to oil dipstick
level readings.
During
oil and
oil
filter
changes,
one
additional
quart
is
required
when
the
filter
element is
changed.
OIL AND OIL FILTER,
CHANGE
--
After
the
first
25 hours
of operation, drain engine oil sump
and
oil
cooler and clean
the
oil
pressure
screen. If
an oil
filter
is installed,
change filter
at this time. Refill sump with
straight mineral
oil
and
use until a total of 50 hours has
accumulated or
oil consump-
tion
has
stabilized; then change to dispersant
oil. On airplanes not
equipped with
an oil
filter,
driin the
engine oil sump and
oil cootF
and. clean
the
oil
pressure
screen
each
50 hours
thereafter.
On
airplanes which
have an oil filter, the
oil change
interval
may be
extended
to 100-hour
intervals,
providing
the
oil
filter is
changed at
50-hour intervals.
Change
engine oil at least
every
6 months
even
though
less
than the recommended hours
have
accumulated. Re-
duce intervals
for
prolonged
operation in
dusty
areas,
cold cli-
mates, or when
short
ftights
and
long idle
periods
result
in
sludg-
ing
conditions.
FU Et
AppRovED FUEL
GRADES
(AND
COLORS)
--
100LL
Grade
Aviation
FueI
(Blue).
100
(Formerly
100/
130)
Grade
Aviation Fuel
(Green).
CAPACITY
EACH
STANDARD
TANK
--
21.5
Gallons.
CAPACITY
EACH LONG
RANGE
TANK
--
27
Gallons.
NOTE
To
ensure murimum
fuel
capacity when
refueling,
place
the
fuel
selector
valve in either LEFT or RIGHT
posi-
tion
to
prevent
cross-feeding.
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