Exmark QUEST S Series Operator's Manual page 45

Viscosity table
Note: To prevent extensive engine wear or
damage, always maintain the proper oil level in the
crankcase. Never operate the engine with the oil
level below the "ADD" mark or over the "FULL"
mark on the dipstick.
Changing the Engine Oil
Service Interval: After the first 5 hours
Every 100 hours (change
it more often under a
heavy load or in high
temperatures)(Exmark
Engine).
1. Park the machine so that the drain side is slightly
lower than the opposite side to ensure the oil
drains completely.
2. Start the engine and let it run until warm. This
warms the oil so it drains better.
3. Disengage the blade control switch and ensure
the parking brake is engaged.
4. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
Figure 35
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45
Maintenance
Figure 36
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