Benchmark BW4400, User Manual, Page: 18 / 110

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3.5 CHECK THE FUEL LEVEL
WARNING!
Gasoline is highly flammable and explosive under certain conditions.
Refuel in a well-ventilated area with the engine stopped. Do not smoke
or allow open flames or sparks in the area where the pressure washer
is being refueled or where gasoline is stored. Do not overfill the tank. Be
careful not to spill fuel when refueling. Wipe up any spilled gasoline and
let the area dry before starting the engine.
Gasoline substitutes such as gasohol are not recommended. They may be
harmful to the fuel system components.
1. Check the fuel level by removing the fuel tank cap to visually check the level.
2. Add fuel until the level reaches 1.5" below the top of the neck. Tighten the
fuel cap securely after refilling.
Note
Only use unleaded gasoline (Pump Octane 87 or higher).
Never use stale or contaminated gasoline, or an oil/gasoline mixture.
Avoid getting dirt or water into the fuel tank.
Do not use a mixture of gasoline containing methanol. This will cause
serious damage to the engine.
Use of gasoline with an ethanol content greater than 10% can damage
the engine and fuel system and will void the manufacturer’s warranty.