Cub Cadet RZT Series Operator's Manual page 34

Oil Fill/
Air Cleaner
Access Door
Air Cleaner Access
Door Handle
\
Electric
Starter
Spark Plug
/
/
/
/
Fuel Pump
Identification Plate
Filter
Figure 1. Typical Courage,M Series Vertical Shaft 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 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 SG, SH, SJ or higher.
Select the viscosity based on the air temperature at the
time of operation as shown in the following table.
RECOMMI:NDED SAE VISCOSITY GRADES
F I
'F-20i 0 2? _2 4_ 610 8O , 100
o,3o -io o :'o 20 3:o 4o
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 2. 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 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.