Honeywell HW4000 User Manual

22

 HW4000 Portable Generator Owner’s Manual

Reinstall oil fill cap and tighten until fully seated.

 

i
Dispose of used motor oil according to guidelines estab-
lished by your local or state government.

Before each use, check fuel gauge on fuel tank.
If fuel level is low, refill tank with recommended fuel. 
NEVER OVERFILL.

Check fuel gauge located on the top of generator near fuel 
tank and refill tank if fuel level is low. Refuel carefully to 
avoid spilling fuel. Do not fill above the shoulder of fuel 
strainer. Use unleaded gasoline with a pump octane rating 
of 87 or higher.

Never use stale or contaminated gasoline. Avoid getting 
dirt or water in the fuel tank. Always keep fuel strainer in 
place while refueling.

At certain times of the year, some U.S. locations may 
have only oxygenated fuel available. Oxygenated fuel is 
blended with alcohol or ether additives to increase octane 
quality, enhance combustion, and reduce exhaust emis-
sions.

Some areas of the United States use oxygenated fuels to 
help meet clean air standards.

Before using an oxygenated fuel:

Be sure pump octane rating is 87 or higher.

Try to confirm contents of fuel.

Some states (and provinces in Canada) require this infor-
mation to be posted on the fuel pump. If you notice unde-
sirable operating symptoms, switch to a conventional 
unleaded gasoline.

Stop generator if engine is running. Allow to com-
pletely cool.

Be sure generator is set on flat, level surface.

Remove fuel tank cap.

Fuel and fuel vapors are extremely flammable and 
explosive under certain conditions. 

• Refuel generator only outdoors, in a well-ventilated 

area.

• NEVER fill fuel tank while engine is running. Turn gen-

erator OFF and allow to cool before filling with fuel.

• NEVER smoke or allow flames or sparks near genera-

tor or where gasoline is stored.

• NEVER overfill fuel tank (no fuel should be in filler 

neck). After refueling, be sure fuel tank cap is closed 
properly and securely. 

• Be careful not to spill fuel when refueling. Spilled fuel 

or fuel vapor may ignite. If any fuel is spilled, be sure 
area is dry before starting engine.

• Avoid repeated or prolonged contact with skin or 

breathing of vapor.

Oxygenated fuels can damage paint and plastic. Be careful 
not to spill fuel when filling fuel tank. Damage caused by 
spilled fuel is not covered under warranty.

Ethanol 
(ethyl or grain alcohol)

Gasoline containing more than 
10% ethanol by volume may 
cause starting or performance 
problems. Gasoline containing 
ethanol may be marketed 
under the name "Gasohol".

Methanol 
(methyl or wood alco-
hol)

Gasoline containing methanol 
must contain co-solvents and 
corrosion inhibitors to protect 
fuel system. Gasoline contain-
ing more than 5% methanol by 
volume may cause starting 
and/or performance problems 
and may damage metal, rub-
ber and plastic parts of fuel 
system.

MTBE 
(methyl tertiary butyl 
ether)

You can use gasoline contain-
ing up to 15% MTBE by vol-
ume.

To avoid damage to engine, never use stale or contaminated 
gasoline or oil/gasoline mixture. Avoid getting dirt or water in 
fuel tank.

Use fresh gasoline with a pump octane rating of 87 or 
higher.