Oil Recommendations; Oil Type; Fuel Recommendations - Kohler Courage SV470 Service Manual

Section 1
Safety and General Information

Oil Recommendations

Using the proper type and weight of oil in the
crankcase is extremely 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
Petroleum Institute) service class SJ or higher. Select
the viscosity based on the air temperature at the time
of operation as shown below.
RECOMMENDED SAE VISCOSITY GRADES
**
*
5W-20, 5W-30
°F -20 0 20 32
°C -30 -20 -10 0
TEMPERATURE RANGE EXPECTED BEFORE NEXT OIL CHANGE
* Use of synthetic oil having 5W-20 or 5W-30 rating is acceptable,
up to 4°C (40°F)
** Synthetic oils will provide better starting in extreme cold below
23°C (-10°F)
NOTE: Using other than service class SJ or higher
oil or extending oil change intervals longer
than recommended can cause engine
damage.
NOTE: Synthetic oils meeting the listed
classifications may be used with oil changes
performed at the recommended intervals.
However to allow piston rings to properly
seat, a new or rebuilt engine should be
operated for at least 50 hours using standard
petroleum based oil before switching to
synthetic oil.
A logo or symbol on oil containers identifies the API
service class and SAE viscosity grade. See Figure 1-3.
SAE
10W-30
Figure 1-3. Oil Container Logo.
1.4
10W-30
Kohler 10W-30
40 60 80 100
10 20 30 40
Refer to Section 6 - Lubrication System for detailed
oil check, oil change, and oil filter change procedures.

Fuel Recommendations

WARNING: Explosive Fuel!
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.
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.
Fuel Type
For best results use only clean, fresh, unleaded
gasoline with a pump sticker octane rating of 87
(R+M)/2 or higher. In countries using the Research
Octane Number (RON), it should be 90 octane
minimum. Leaded gasoline is not recommended and
must not be used on EFI engines or on other models
where exhaust emissions are regulated.
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 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 engines.
Other gasoline/ether blends are not approved.