Operation WP 1550A/AW
wpm_tx001131gb.fm 20
4. Operation
4.1 Recommended Fuel
The engine requires regular grade unleaded gasoline. Use only fresh, clean gasoline. Gasoline
containing water or dirt will damage fuel system. Consult engine owner’s manual for complete fuel
specifications.
Use of oxygenated fuels
Some conventional gasolines are blended with alcohol. These gasolines are collectively referred to
as oxygenated fuels. If you use an oxygenated fuel, be sure it is unleaded and meets the minimum
octane rating requirement.
Before using an oxygenated fuel, confirm the fuel's contents. Some states and provinces require
this information to be posted on the fuel pump.
The following is the Wacker Neuson approved percentage of oxygenates:
ETHANOL - (ethyl or grain alcohol) 10% by volume. You may use gasoline containing up to 10%
ethanol by volume (commonly referred to as E10). Gasoline containing more than 10% ethanol
(such as E15, E20, or E85) may not be used because it could damage the engine.
If you notice any undesirable operating symptoms, try another service station, or switch to another
brand of gasoline.
Fuel system damage or performance problems resulting from the use of an oxygenated fuel
containing more than the percentages of oxygenates mentioned above are not covered under
warranty.
4.2 Before Starting
4.2.1 Read and understand the safety and operating instructions at the
beginning of this manual.
4.2.2 Check:
• Oil level in the engine
• Fuel level
• Condition of the air cleaner
• Tightness of the external fasteners
• Condition of the fuel lines
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