Toro 74657 Operator's Manual page 37

Figure 38
Changing the Engine Oil and Oil
Filter
Service Interval: After the first 5 hours/After the
Every 100 hours/Yearly (whichever comes
first)—Change the engine oil (more often in
dusty, dirty conditions).
Every 100 hours/Yearly (whichever comes
first)—Change the oil filter (more often in dusty,
dirty conditions).
Note:
Change the engine-oil filter more frequently
when operating conditions are extremely dusty or
sandy.
Note:
Dispose of the used oil at a recycling center.
1. Park the machine on a level surface to ensure
that the oil drains completely.
2. Disengage the PTO and ensure that the parking
brake is engaged.
3. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
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first month (whichever comes
first)—Change the engine oil.