Generac XP Serie Manuel D'entretien page 10

Operation
2.7 BEFORE STARTING THE GENERATOR
Prior to operating the generator, engine oil and gasoline will need
to be added, as follows:
2.7.1 ADDING ENGINE OIL
All oil should meet minimum American Petroleum Institute (API)
Service Class SJ, SL or better. Use no special additives. Select
the oil's viscosity grade according to the expected operating
temperature (also see chart).
• Above 40° F, use SAE 30
• Below 40° F and down to 10° F, use 10W-30
• Below 10° F, use synthetic 5W-30
Any attempt to crank or start the engine

before it has been properly serviced with the
recommended oil may result in an engine
failure.
10 W- 30 10W - 30
Synthetic 5W-30 Sy nth et i c 5 W-3 0
• Place generator on a level surface.
• Clean area around oil fill and remove oil fill cap.
• Slowly fill engine with oil through the oil fill opening until it
reaches the full mark. Stop filling occasionally to check oil
level. (Engine oil is full when level is up to the threads of the
oil fill plug.)
• Install oil fill cap and finger tighten securely.
• Check engine oil level before starting each time thereafter.
2.7.2 ADDING GASOLINE
Gasoline is highly FLAMMABLE and its vapors

are EXPLOSIVE.
Never fill fuel tank indoors. Never fill fuel tank

when engine is running or hot. Avoid spilling
gasoline on a hot engine. Allow engine to cool
entirely before filling fuel tank.
8
S AE 30 S AE 3 0
Do not overfill the fuel tank. Always leave room

for fuel expansion. If the fuel tank is overfilled,
fuel can overflow onto a hot engine and cause
FIRE or EXPLOSION. Wipe up any spilled fuel
immediately.
Do not light a cigarette or smoke when filling

the fuel tank. Gasoline is highly FLAMMABLE
and its vapors are EXPLOSIVE.
• Use regular UNLEADED gasoline with the generator engine. Do
not use premium gasoline. Do not mix oil with gasoline.
• Do not use gasoline with more than 10% alcohol such as E85
or Methanol.
• Clean area around fuel fill cap, remove cap.
• Slowly add unleaded regular gasoline to fuel tank. Fill to bottom
of screen filter. Be careful not to overfill (Figure 9).
• Install fuel cap and wipe up any spilled gasoline.
Figure 9 - Fuel Tank
Fuel Tank
Fuel
IMPORTANT: It is important to prevent gum deposits from forming
in fuel system parts such as the carburetor, fuel hose or tank
during storage. Alcohol-blended fuels (called gasohol, ethanol
or methanol) can attract moisture, which leads to separation and
formation of acids during storage. Acidic gas can damage the fuel
system of an engine while in storage. To avoid engine problems,
the fuel system should be emptied before storage of 30 days or
longer. See the "Storage" section. Never use engine or carburetor
cleaner products in the fuel tank as permanent damage may
occur.
2.8 TO START THE ENGINE
Never start or stop engine with electrical

devices plugged into the receptacles AND
devices turned on.
• Unplug all electrical loads from the unit's receptacles before
starting the engine.
• Make sure the unit is in a level position.
• Open the fuel shut-off valve (Figure 10).
• Slide engine CHOKE knob outward to "Full Choke" position
(Figure 11).
DO NOT Fill Above Lip