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FieldServiceTech
FieldServiceTech, Mechanic
Category: Boat
Satisfied Customers: 147
Experience:  19 years boating and outboard motor experience
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what type of oil is used for a 350 mag mercruiser

Resolved Question:

what type of oil is used for a 350 mag mercruiser?
Submitted: 7 years ago.
Category: Boat
Expert:  FieldServiceTech replied 7 years ago.

Hello and thanks for using Justanswer.com,

 

The recommended oil for your Mercruiser is Quicksilver 4 cycle 25W-40 Marine engine oil.

 

 

See the chart below..

graphic

 

IMPORTANT: The use of non-detergent oils, multi-viscosity oils (other than Quicksilver 25W-40 or a good quality 20W-40 or 20W-50), synthetic oils, low quality oils or oils that contain solid additives are specifically not recommended.

The chart above is a guide to crankcase oil selection. The oil filter should always be changed when changing engine oil.

Hope this helped,

Eric

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