2009 Yamaha Grizzly Service Manual, Page 90Get this manual
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ENGINE TIP
SAE 5W-30 SAE 10W-30 SAE 10W-40 SAE 15W-40 SAE 20W-40 SAE 20W-50
CHANGING THE ENGINE OIL 1 Start the engine, warm it up for several minutes, and then turn it off2