Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 24Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 24

MAINTENANCE
Drain Plug Method 1Tilt the outboard up to the trailer position
2Tu rn the steering on the outboard so that the drain hole is facing downwardRemove
drain plug and drain engine oil into an appropriate containerLubricate the seal on the drain plug with oil and reinstall
a Drain Hole

Changing Oil Filter
1Place rag or towel below the oil filter to absorb any spilled oil

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