Viscosity Grades Table; Check Oil Level; Section 6. Lubrication System; Oil Recommendations - Kohler Courage SV470 Service Manual

Oil Recommendations

Using the proper type and weight of oil in the
crankcase is extremely important. So 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 in the following table.
R E C O M M E N D E D S A E V I S C O S I T Y G R A D E S
**
*
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)
Figure 6-1. Viscosity Grades Table.
NOTE: Using other than service class SG, SH, 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 6-2.
Section 6
Lubrication System
10W-30
Kohler 10W-30
40 60 80 100
10 20 30 40
SAE
10W-30
Figure 6-2. Oil Container Logo.

Check Oil Level

The importance of checking and maintaining
the proper oil level in the crankcase cannot be
overemphasized. Check oil BEFORE EACH USE as
follows:
1. Make sure the engine is stopped, level, and is
cool so the oil has had time to drain into the
sump.
2. To keep dirt, grass clippings, etc., out of the
engine, clean the area around the oil fill cap/
dipstick before removing it.
3. Remove the oil fill cap/dipstick; wipe oil off. See
Figure 6-3. Reinsert the dipstick into the tube and
fully seat the dipstick in the tube. See Figure 6-4.
Figure 6-3. Removing Dipstick.
Section 6
Lubrication System
6
6.1