Kohler KT19 User Manual
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Figure 1. Typical KT Engine.
Oil Recommendations
Using the proper type and weight of oil in the crankcase
is extremely important. So is checking oil daily and
changing oil and filter regularly. Failure to use the
correct oil, or using dirty oil, causes premature engine
wear and failure.
Before each start, make sure the crankcase is filled
with proper type and quantity of oil.
Oil Type
Use high quality detergent oil of API (American
Petroleum Institute) service class SG, SH, SJ or
higher. Select the viscosity based on the air
temperature at the time of operation as shown in the
following table.
Straight 30-weight (Kohler "Magnum") oil is
preferred. SAE 10W-30 oil is not recommended above
32°F. Using this oil substantially increases oil
consumption and combustion chamber deposits.
NOTE: Using other than service class SG, SH, SJ or
higher oil or extending oil change intervals
longer than recommended can cause engine
damage.
A logo or symbol on oil containers identifies the API
service class and SAE viscosity grade. See Figure 3.
Figure 3. Oil Container Logo.
Refer to Maintenance Instructions beginning on
page 7 for detailed oil check, oil change, and oil
filter change procedures.
Figure 2. Viscosity Grades Table.