2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 29Get this manual
Maintenance and Tune-Up:
Service Instructions
Engine Oil Level Check
Inspect oil level Before every use 1) Place outboard motor upright on level surface2) Remove motor cover3) Remove oil level dipstick (1) and wipe it cleanI9J011020036-01
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Engine Oil Change and Engine Oil Filter Replacement
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Change engine oil Initially after 20 hours (1 month) and every 100 hours (6 months)
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