Fueling The Generator; To Fill The Fuel Tank; Adding Engine Oil; To Add Engine Oil To The Crankcase - Generac Power Systems 005793-0 Owner's Manual

Operation

FUELING THE GENERATOR

Use care when fueling the generator. Only fill the fuel tank when
the generator has cooled entirely. Use fresh unleaded gasoline with
a minimum Research Octane Number (RON) of 87.
Do not use any gasoline containing more than 10% Ethanol.
NEVER fill the fuel tank with E85 or a mixture of oil and gasoline
designated for two-cycle engines.
Do not light a cigarette or smoke when filling the
fuel tank.
Gasoline is highly FLAMMABLE and its vapors

are EXPLOSIVE. Do not permit smoking, open
flames, sparks or heat in the vicinity while
handling gasoline.
Never fill fuel tank indoors. never fill fuel

thank when engine is running or hot. avoid
spilling gasoline on a hot engine. allow engine
to cool entirely before filling fuel tank.
Do not overfill the fuel tank. Always allow

room for fuel expansion. If tank is over-filled,
fuel can overflow onto a hot engine and cause
FIRE or an EXPLOSION. Wipe up fuel spills
immediately!

TO FILL THE FUEL TANK

1. Remove the fuel tank cap.
Figure 8 - Fuel Tank Cap
FILL TANK UNTIL
FUEL IS TWO (2)
INCHES BELOW
THE TOP
8 8
NOTE:
FUEL
TANK
CAP
2. Add fuel slowly, stopping about two (2) inches below the top
of the filler neck.
3. Replace the fuel tank cap. Make sure the valve on the fuel cap
is in the "OFF" position.
4. If the generator is going to be started, refer to the section
"STARTING THE GENERATOR" for additional directions on
priming the fuel system.

ADDING ENGINE OIL

All oil should meet minimum American Petroleum Institute (API)
Service Class SJ, SL or better. Do not use any aftermarket
additives.
Select the oil's viscosity grade according to the expected operating
temperature, only a little more than one-half quart is needed.
• Above 40° F, use SAE 30
• Below 40° F to 10° F, use 10W-30
• Below 10° F, use synthetic 5W-30
10W-30
Synth et ic 5W-30

TO ADD ENGINE OIL TO THE CRANKCASE

1. Place the unit on a firm, level surface.
2. Remove the Left Side Service Cover.
3. Remove the oil fill cap located on the bottom of the engine
crankcase.
4. Add the recommended engine oil slowly, stopping frequently
to check the level. The full level is the base of the threads in
the filler neck. DO NOT OVERFILL!
5. Replace the oil fill cap and tighten.
6. Always check the oil level before starting the generator
engine.
DO NOT overfill the engine crankcase with

oil. High oil pressure may result, causing
premature engine wear and damage.
SAE 30