Mercury Mariner Outboard 40/50/55/60 2-stroke Service Manual, Page 17Get this manual
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Specifications Gear Case Lubricant Capacity
4SAE 30W Motor OilObtain Locally
Quicksilver LubricantSealant
1 Gear Lube-Premium Blend PN 92-19007A24
90-852572R1 JAN