Husqvarna 525P4S Operator's Manual page 12

exhaust fumes. The quantity of remains after
combustion is lower with this fuel, which keeps the
components of the engine more clean.
To mix fuel
Gasoline
CAUTION: Do not use gasoline with an
octane number less than 90 RON (87 AKI).
This can cause damage to the product.
CAUTION: Do not use gasoline with more
than 10% ethanol concentration (E10). This
can cause damage to the product.
• Always use new unleaded gasoline with a minimum
octane number of 90 RON (87 AKI) and with less
than 10% ethanol concentration (E10).
• Use gasoline with a higher octane number if you
frequently use the product at continuously high
engine speed.
Two-stroke oil
• For best results and performance use Husqvarna
two-stroke oil.
• If Husqvarna two-stroke oil is not available, use a
two-stroke oil of good quality for air-cooled engines.
Speak to your servicing dealer to select the correct
oil.
CAUTION: Do not use two-stroke oil for
water-cooled outboard engines, also
referred to as outboard oil. Do not use oil
for four-stroke engines.
To mix gasoline and two-stroke oil
Gasoline, liter
5
10
15
20
CAUTION: Small errors can influence the
ratio of the mixture drastically when you mix
small quantities of fuel. Measure the quantity
of oil carefully and make sure that you get
the correct mixture.
12
1. Fill half the quantity of gasoline in a clean container
2. Add the full quantity of oil.
3. Shake the fuel mixture.
4. Add the remaining quantity of gasoline to the
5. Carefully shake the fuel mixture.
To fill the fuel tank
1. Clean the area around the fuel tank cap.
2. Shake the container and make sure that the fuel is
3. Fill the fuel tank.
4. Tighten the fuel tank cap carefully.
5. Move the product 3 m (10 ft) or more away from the
Two-stroke
oil, liter
2% (50:1)
0.10
0.20
0.30
0.40
To do a run-in
•
for fuel.
container.
CAUTION: Do not mix fuel for more than 1
month at a time.
fully mixed. Use a fuel container with an anti-spill
valve.
refueling area and fuel source before starting.
CAUTION: Contamination in the tanks
causes malfunction. Clean the fuel tank and
chain oil tank regularly and replace the fuel
filter one time a year or more.
During the first 10 hours of operation, do not apply
full throttle without load for extended periods.
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