Toro GT series - Fluid Change

HYDROSTATIC DRIVE SYSTEM
6-21GT Series Tractors Service Manual
6
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require periodic oil change. In the event of oil contamina-
tion or degradation, oil replacement may correct certain
performance problems:
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Fluid Description Volume
20W-50 engine oil 0.95 gal (116.5oz)
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X-XX.
5. Purge the system. Refer to “Purging the System” on
page X-XX.
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port
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B