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THE
PIPER CHEROKEE
SECTION
V
spsrk plug
meintcna.nc!
and morc frcqucnt oit
changcs.
The
frcquency
of
sperk plug maintenancc
and
oil
drain pcriods
will
bc governeC bv
thc
amount
of
lead
pcr gallon and thc rypc of.opcration. Opcration
at
full rich
mixrure
rcquires
inorc frcqucnt
mainrenance
pcriods;
thcrcforc,
it
is
important
ro
use propcr
approved
mixturc
leaning
proccdures.
'i
Rcfcrcncc
the latcst
issuc
of
Lycorning Scrvicc
Lcttcr No.
Llg5
for
carc,
opcration,rnd
mlintcnanc.
of
dhc
airplanc
whcn
using
tlre
highcr lcaded
fud.
A
summary
of
thc
current
grades
as
well
as
thc
previous
fuel
dcsignatioru
arc
shown
in
rhc
following
chan:
:..n1#,'?,-Jå:ffi
';"J;:i:i'åt'l:';ifr [1;'I,;:f
::5;l*-#:'iliJili;l?h;*",
up
ro
.a
mUU.S. BlUon
rrc approvtd
Io.
ut.
in
rll
engin<,
I
crdfiarcd
for
u*
wirh
Frdc
loo/l
rO tuel.
OIL
REQUIREMENTS
The
capaciry
of
the
0-320
scries engine
is
8
qurrts,
and
the
minimum
safc
quantity
is 2
quarts
[t
is
rccommcndcd
that
t]re
oil
be
changcd
crrcry
50 hours and
sooner.
under unfavorablc
operating
-conditions.
Interrels bctween
oil
changcs
can
be incrcased
as
much
as
100%
on
cngines
cquipped
with full flow
carridge
typc
oil
filters,
prorridcd
the
elemerrt
is
rcplaccd
cach
50
hours
of
opcration and
the
specificd octane
fuel
is
used.
Should
fucl
other than
the
specified
o«ane
rating
for
the powcr
plant
bc
uscd,
rcfcr
to
the
latcst
issuc
of
Lycoming
Servicc
Letter No. L185
and Lycoming
Service
Irutruction
No.
1014
for
additional information and
recommcndcd
scrvice
FUEL CRADE
COMPARISON CTIART
Pnviou
Commrr<i:l
Fucl
Grd6 (^ST[LD9lo)
Curtnr
('bmmcacial
I;ucl Gr:dc!
(ASTM-)9lG7r)
Cu..m( Mili(lry
Fucl Gndcr
(^tll--G-JJ72li)
^mandmcnr
No
t
(lrerlc
Cul
r
Har,
TEL
ml/U
S
gzl
(
r.d(
(:oldr
,Uax
TEL
ml/U,S.8rl.
(itrdc
Co
or
Mu. Tl:L
ml/U.S. gd
8(Vff7
9lle6
rm/tJo
Iil/l4l
b
luc
ta(!n
purplc
ot
z0
i
l.o
4.6
80
'l00LL
l([
rcd
blu<
8(ccn
o.5
2.0
't.
o
tolil
100/uo
t
t5l
1+t
rad
gr«n
purpl.
0.5
"
J.o
4.6
770527
3l
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