4
Maintenance
OIL RECOMMENDATIONS
All-season KOHLER
®
PRO 10W-50 Synthetic Oil is the
ideal oil for KOHLER engines. It is speci
fi
cally formulated
to extend the oil and oil
fi
lter change interval to 300
Hours when paired with a KOHLER PRO Extended Life
Oil Filter.
300-Hour oil and oil
fi
lter change intervals are exclusive
to and only authorized on KOHLER engines that utilize
both the KOHLER PRO 10W-50 Synthetic Oil and
KOHLER PRO Extended Life Oil Filter. Alternative
engine oils and oil
fi
lters may be used with KOHLER
engines but require 200-Hour oil and oil
fi
lter change
intervals for proper maintenance. Oil must be API
(American Petroleum Institute) service class SJ or
higher. Select viscosity based on air temperature at time
of operation as shown below.
°F -20
0
20
32 40
60
50
80
100
°C -30
-20
-10
0
10
20
30
40
5W-30
10W-30
SAE 30
Kohler PRO 10W-50
FUEL RECOMMENDATIONS
WARNING
Explosive Fuel can cause
fi
res and severe
burns.
Do not
fi
ll fuel tank while engine is hot or
running.
Gasoline is extremely
fl
ammable and its vapors can
explode if ignited. Store gasoline only in approved
containers, in well ventilated, unoccupied buildings,
away from sparks or
fl
ames. Spilled fuel could ignite
if it comes in contact with hot parts or sparks from
ignition. Never use gasoline as a cleaning agent.
NOTE: E15, E20 and E85 are NOT approved and
should NOT be used; e
ff
ects of old, stale or
contaminated fuel are not warrantable.
Fuel must meet these requirements:
●
Clean, fresh, unleaded gasoline.
●
Octane rating of 87 (R+M)/2 or higher.
●
Research Octane Number (RON) 90 octane minimum.
●
Gasoline up to 10% ethyl alcohol, 90% unleaded is
acceptable.
●
Methyl Tertiary Butyl Ether (MTBE) and unleaded
gasoline blend (max 15% MTBE by volume) are
approved.
●
Do not add oil to gasoline.
●
Do not over
fi
ll fuel tank.
●
Do not use gasoline older than 30 days.
STORAGE
If engine will be out of service for 2 months or more
follow procedure below.
1. Coolant (anti-freeze) mixture should be in good
condition and tested to guard against freezing in cold
temperatures. Recommended 50/50 mixture will
normally provide protection down to temperatures of
-34°F (-37°C). If storage temperatures will fall below
this, cooling system should be drained completely. A
note should then be attached to equipment and/or
engine as a reminder to re
fi
ll cooling system before
starting.
2. Add Kohler PRO Series fuel treatment or equivalent
to fuel tank. Run engine 2-3 minutes to get stabilized
fuel into fuel system (failures due to untreated fuel
are not warrantable).
3. Change oil while engine is still warm from operation
(NOT required if using KOHLER PRO 10W-50
full-synthetic oil). Remove spark plug(s) and pour
about 1 oz. of engine oil into cylinder(s). Replace
spark plug(s) and crank engine slowly to distribute
oil.
4. Disconnect negative (-) battery cable.
5. Store engine in a clean, dry place.
KohlerEngines.com
66 690 14 Rev. A
