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How Much Seafoam Per Gallon?

tcbass
in Bass Boats, Canoes, Kayaks and more

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  • Super User

I always put Seafoam in all of my motors besides automobiles. It's what I was taught to do and it's always worked. When I read the label though the can says, "Treats 8-25 gallons." My 2000 Crestliner Fishawk (2000 Mercury 115 horse) has a 20 gallon tank I believe. I'd think it would take almost an entire can of Seafoam.

 

 

 

What????? What kind of answer is that? I'm sure that the more concentrated it is the better in some cases, but why don't they put a recommended ratio such as 50:1 or 1oz per gallon?

 

 

 

 

So, what is the recommended ratio of ounces per gallon for Seafoam?

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    • Super User

    One ounce per gallon for every day use.

    Two ounces per gallon for long term storage.

    Thanks!

  • Quote

    If it were me I'd pour the whole bottle. And do it every other or 3rd fill up.

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