MTD 547cc Operator's Manual page 7

Fuel Requirements
CAUTION:
Operating the engine with E15 or E85
fuel, an oil/gasoline mixture, dirty gasoline, or
gasoline over 30 days old without fuel stabilizing
additive may result in damage to your engine's
carburetor. Subsequent damage would not be
covered under the manufacturer's warranty.
Use automotive gasoline (unleaded or low leaded to minimize
combustion chamber deposits) with a minimum of 87 octane.
Gasoline with up to 10% ethanol (E10) or 15% MTBE (Methyl
Tertiary Butyl Ether) can be used. Never use an oil/gasoline
mixture or dirty gasoline. Avoid getting dirt, dust, or water in the
fuel tank. DO NOT use E15 or E85 gasoline.
WARNING!
Gasoline is extremely flammable and is
explosive under certain conditions.
• Refuel in a well-ventilated area with the engine stopped.
Do not smoke or allow flames or sparks in the area where
the engine is refueled or where gasoline is stored.
• Do not overfill the fuel tank. After refueling, make sure the
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, make sure the
area is dry before starting the engine.
• Avoid repeated or prolonged contact with skin or
breathing of vapor.
Adding Fuel
WARNING!
An adult should fuel this engine.
NEVER allow children to refuel the engine. Gasoline
(fuel) vapors are highly flammable and can explode.
Fuel vapors can spread and be ignited by a spark or
flame many feet away from engine. To prevent injury
or death from fuel fires, follow these instructions:
• DO NOT use leaded fuel.
• Fuel must be fresh and clean. NEVER use fuel left over
from last season or stored for long periods.
• NEVER mix oil with fuel in this engine.
• DO NOT use fuel containing Methanol (Wood
Alcohol)
NOTE: Before refueling, allow engine to cool two minutes.
1. Clean around fuel fill before removing cap to fuel.
2. Fill tank until fuel reaches 1⁄2 inch below the bottom of the
filler neck to allow space for fuel expansion. Be careful not
to overfill.
3. Replace the fuel cap and tighten securely. Wipe up spilled
fuel before starting engine. If fuel is spilled DO NOT start
engine. Move machine away from area of spillage. Avoid
creating any source of ignition until fuel vapors are gone.
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