I need to winterize a Mercury 40 HP outboard motor about 5 years old. What are the steps involved in doing this?

Chris Goodridge @chris-goodridge

July 2022 1 23 Report

I need to winterize a Mercury 40 HP outboard motor about 5 years old. What are the steps involved in doing this?

I will be storing it indoors in the winter in my garage. Still gets very cold in the garage.

Boating

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jws1013

Winterizing is fairly easy. You can put the lower unit in a mix of water and antifreeze and run it to get all the water out and replaced with antifreeze. Next you can either spray fogging oil in and add fuel stabilizer to your gas tank.

Here is a link to more info.
https://www.boatus.com/boattech/casey/winterizing-your-engine.asp

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