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FUEL RECOMMENDATIONS
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WARNING: Explosive Fuel1
Gasoline is extremely flammable and its vapors can
explode if ignited. Store gasoline only in approved
containers, in well-ventilated, unoccupied buildings,
away from sparks or flames. Do not fill the fuel tank
while the engine is hot or running, since spilled fuel
could ignite if it comes in contact with hot parts or
sparks from ignition.
Do not start the engine near
spilled fuef; wipe up spills immediately. Never use
gasoline as a cleaning agent.
General Recommendations
Purchase gasoline in small quantities and store in
clean, approved containers. A container with a
capacity of 2 gallons or less with a pouring spout is
recommended. Such a container is easier to handle
and helps eliminate spillage during refueling. Do not
use gasoline left over from the previous season, to
minimize gum deposits in your fuel system and to
insure easy starting. Do not add oil to the gzisoline.
Do not overfill the fuel tank. Leave room for the fuel to
expand.
Fuel Type
For best results, use only clean, fresh, unleaded
gasoline with a pump sticker octane rating of 87 or
higher. In countries using the Research method, it
should be 90 octane minimum.
Unleaded gasoline is recommended as it leaves less
combustion chamber deposits. Leaded gasoline may
be used in areas where unleaded is not available and
exhaust emissions are not regulated. Be aware
however, that the cylinder head will require more
frequent service. See “Required Maintenance” on
page 7.
Gasoline/Alcohol blends
Gasohol (up to 10% ethyl alcohol, 90% unleaded
gasoline by volume) is approved as a fuel for Kohler
engines. Other gasoline/alcohol blends are not
approved.
Gasoline/Ether blends
Methyl Tertiary Butyl Ether (MTBE) and unleaded
gasoline blends (up to a maximum of 15% MTBE by
volume) are approved as a fuel for Kohler engines.
Other gasoline/ether blends are not approved.
OIL RECOMMENDATIONS
Using the proper type and weight crankcase oil is
extremely important as is checking oil daily and
changing oil and filter regularly. (See ‘Required
Maintenance” on page 7.) Failure to use the correct oil
or using dirty oil causes premature engine wear and
failure.
Before starting engine, fill the crankcase with the
proper type and quantity of oil.
Oil Type
Use high-quality detergent oil of API (American
Petroleum Institute) service class SG or SH. Select the
viscosity based on the air temperature at the time of
operation as shown in the table.
Recommended SAE Viscosity Wades
TEMPERATURE RANGE EXPECTED BEFORE NEXT OIL CHAW6E
Straight 30-welght oil Is preferred. SAE lOW-30 oil
is not recommended above 32” F. Using this oil
substantially increases oil consumption and
combustion chamber deposits.
(See Changing Oil” and “Required Maintenance” on
pages 4 and 7.)
NOTE: Using other than service class SG or SH oil or
extending oil change intervals longer than
recommended could cause engine damage
which is not covered by the engine warranty.
A logo or symbol on oil containers identifies the API
service class and SAE viscosity grade.
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