Toro Groundsmaster 4500-D Operator's Manual page 44

Figure 41
Note: When using different oil, drain all old oil from
the crankcase before adding new oil.
Changing the Engine Oil and Filter
Service Interval: Every 250 hours
1. Start the engine and let it run 5 minutes to allow the
oil to warm up.
2. With the machine parked on a level surface, shut off
the engine, remove the key from the key switch, and
wait for all moving parts to stop before leaving the
operating position.
3. Replace the engine oil and filter
4. Add oil to the crankcase; refer to
Engine-Oil Level (page
44
(Figure 42).
Figure 42
Checking the
43).