Oil Recommendations
Using the proper type and weight of oil in the
crankcase is extremely important. So is checking oil
daily and changing oil regularly. Failure to use the
correct oil, or using dirty oil, causes premature engine
wear and failure.
Oil Type
Use high quality detergent oil of API (American
Petroleum Institute) service class SJ or higher. Select
the viscosity based on the air temperature at the time
of operation as shown in the following table.
RE CO M ME NDED SA E VI SC O SI TY G R A D E S
5W-30
°F 0
10
20
32
°C -17
-12
-6
0
TEMPERATURE RANGE EXPECTED BEFORE NEXT OIL CHANGE
Figure 3. Oil Viscosity Grades Table.
Refer to Maintenance Instructions for detailed oil
check and oil change procedures.
Fuel Recommendations
Explosive Fuel can cause fires
and severe burns.
Do not fill the fuel tank while the
engine is hot or running.
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 fuel. 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.
Kohler 10W-30
10W-30
40
60
80
100
10
20
30
40
WARNING
Do not use gasoline left over from the previous season,
to minimize gum deposits in your fuel system and to
ensure easy starting.
Do not add oil to the gasoline.
Do not overfill the fuel tank. Leave room for the fuel to
expand. See Figure 4.
Filler
Neck
Filler
Neck
Figure 4. Maximum Fuel Level.
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 and reduces
harmful exhaust emissions. Leaded gasoline is not
recommended.
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 including E20
and E85 are not to be used and are not approved. Any
failures resulting from use of these fuels will not be
warranted.
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 engine.
Other gasoline/ether blends are not approved.
Fuel Tank
Filter
Maximum
Fuel Level
Fuel Tank
7
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