Kohler K9J Service Manual page 6

OIL RECOMMENDATIONS
Using the proper type and weight of oil in the engine
crankcase and in the gear reduction unit is extreme-
ly important, as 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 Pe-
troleum Institute) Service Class SF or SG. Select
the viscosity based on the air temperature at the
time of operation as shown in the table.
Recommended SAE Viscosity Grades
Straight 30-weight oil is preferred. SAE 1 OW-30
and 1 OW-40 are not recommended above 32 °F
(0°C). Using these oils substantially increases oil
consumption and combustion chamber deposits.
Shoulder of flange
Remove from block
Place on shoulder
Read level
NOTE: Using other than Service Class SF or SG 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.
Check Oil Level
Check oil lever BEFORE EACH USE.
Check gear reduction uniot oil level by removing the
drain plug on the lower part of the cover. Oil level
should be up to the bottom of the plug hole. If oil
level is low, remove the vented plug at the top of
the cover, add oil until it reaches the bottom of the
drain plug hole, and replace drain plug and vented
plug.
NOTE: Do not operate the engine with the oil level
below the "L" mark or over the "F" mark on
the dipstick.
Bayonet
Push down on tube
Read level
Figure 1-3. Dipsticks And Oil Fill Tubes.
1.4