Westinghouse WGen12000DF, Service Manual

14 | Westinghouse Outdoor Power Equipment, LLC

ASSEMBLY

FUEL

Fire and explosion hazard. Never use a gasoline 

container, gasoline tank, propane connector hose, 

propane tanks, or any other fuel item that is broken, cut, 

torn or damaged.

Fire and explosion hazard. Do not overfill fuel tank. Fill 

only to the red fill ring located in the in-tank fuel screen 

filter.  Overfilling  may  cause  fuel  to  spill  onto  engine 

causing a fire or explosion hazard.  

Fire and explosion hazard. Never refuel the generator 

while the engine is running. Always turn the engine off 

and allow the generator to cool for two minutes before 

refueling. 

NOTICE

Do not use E15 or E85 fuel in this 

product. Engine or equipment 

damage caused by stale fuel or 

the use of unapproved fuels (such 

as E15 or E85 ethanol blends) is 

not covered by warranty. Only use 

unleaded gasoline containing up to 

10% ethanol.

FUEL REQUIREMENTS

•  CLEAN, FRESH, unleaded gasoline, 87–93 octane.
• 

Up  to  10%  ethanol  (gasohol)  is  acceptable  (where 

available; non-ethanol fuel is recommended).

•  DO NOT use E85 or E15.
•  DO NOT use a gas oil mix.
•  DO NOT modify the engine to run on alternate fuels.
•  DO NOT fuel indoors.
• 

DO NOT create a spark or flame while fueling.

USING FUEL STABILIZER

Adding a fuel stabilizer (not included) extends the usable 

life of fuel and helps prevent deposits from forming that 

can clog the fuel system. Follow the manufacturer’s 

instructions for use. 
Always mix the correct amount of fuel stabilizer to gasoline 

in an approved gasoline container before fueling the 

generator. Run the generator for five minutes to allow the 

stabilizer to treat the entire fuel system.

FILLING THE FUEL TANK

1. 

Turn the generator OFF and allow to cool for a minimum 

of two minutes before fueling. 

2. 

Place the generator on level ground in a well ventilated 

area. 

3. 

Clean area around fuel cap and remove the cap slowly. 

NOTICE

Only fill the tank from an approved gasoline container. 

Make sure the gasoline container is internally clean and 

in good condition to prevent fuel system contamination.

4. 

Slowly add the recommended fuel. Do not overfill. Fill 

only to the red maximum fill ring on the fuel screen filter 

visible in the filler neck. 

5. 

Install the fuel cap. 

NOTICE

Fuel can damage paint and plastic. Use caution when 

filling the fuel tank. Damage caused by spilled fuel is not 

covered under warranty. 

NOTICE

Clean  the  fuel  screen  filter  of  debris  before  and  after 

each  fueling.  Remove  the  fuel  screen  filter  by  slightly 

compressing it while removing it from the fuel tank.