6 32 590 16 Rev. --KohlerEngines.com
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; effects 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 overfi ll fuel tank.
●  Do not use gasoline older than 30 days.
Fuel Line
Low permeation fuel line must be installed on 
carbureted Kohler Co. engines to maintain EPA 
and CARB regulatory compliance.
Change Oil and Filter
Change oil while engine is warm.
1. Clean area around oil fi ll cap/dipstick. 
Remove drain plug and oil fi ll cap/dipstick. 
Allow oil to drain completely.
2. Clean area around oil fi lter. Place a container 
under fi lter to catch any oil and remove fi lter. 
Wipe off mounting surface. Reinstall drain 
plug. Torque to 10 ft. lb. (13.6 N·m).
3. Place new fi lter in shallow pan with open end 
up. Fill with new oil until oil reaches bottom 
of threads. Allow 2 minutes for oil to be 
absorbed by fi lter material.
4. Apply a thin fi lm of clean oil to rubber gasket 
on new fi lter.
5. Refer to instructions on oil fi lter for proper 
installation. 
6. Fill crankcase with new oil. Level should be 
at top of indicator on dipstick.
7. Reinstall oil fi ll cap/dipstick and tighten 
securely.
8. Start engine; check for oil leaks. Stop engine; 
correct leaks. Recheck oil level.
9. Dispose of used oil and fi lter in accordance 
with local ordinances.
Oil Sentry
™
 (if equipped)
This switch is designed to prevent engine 
from starting in a low oil or no oil condition. Oil 
Sentry
™
 may not shut down a running engine 
before damage occurs. In some applications 
this switch may activate a warning signal. Read 
your equipment manuals for more information.