20
Fuel
Fuel lank cap open
The two-stroke engine is powered by a mixture of regular
gasoline and engine oil.
Never use high octane gasoline as it contains benzol which
will permanently damage the carburetor diaphragms.
Only use STIHL two-cycle engine oil or other branded
two-cycle engine oils for mixing. The mix ratio is 1
:40
(1
part oil to 40 parts regular gasoline) with STIHL two-cycle
engine oil or 1:25 for other branded engine oils.
During the running-in period use a fuel-oil mixture of ratio
1:
25 for the first five tank fillings.
Important: Always shake mixture
in
fuel can vigorously
before fueling.
Chain
Oil'
Oil filler cap open
The service life of the chain and bar depends
on
good
lubrication and the quality of the lUbricating oil.
Never use waste oil for this purpose!
Always use the chain lubricating oil approved
by
STIHL
and
appointed dealers.
If
special chain lubricating oil
is
not available, one of the
high-duty, single-grade engine oils listed below may
be
used in
an
emet:gency, depending
on
the outside tempe-
rature.
Outside temperature
+10°C
+40°C:
SAE 30
Outside temperature + 10°C
-10°C:
SAE 20
Outside temperature - 10°C - 30°C: SAE 20 W or
SAE
10
Wor
Always top up with chain oil when you refuel. Carefully
clean the area around the filler caps before opening and
make sure that
no
dirt falls into the tank while you are
refueling.
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