Correct oil/gas mix

[genec]

I have a 20 Hp Evinrude that I got when my cousin died last year - I think motor is about 10-15years old.
I’m just used to 4-stroke engines - what is the correct oil to gas mix for these motors?

[sambo]

Evinrude use 100;1 but you can run 50;1

[genec]

Evinrude use 100;1 but you can run 50;1

Ok, thanks.

[greatwhite]

What year is the motor and size, name

[rick_iles]

Ok, thanks.

Every outboard I’ve ever owned, ran 50:1......

[smitty55]

Every outboard I’ve ever owned, ran 50:1......

Agreed, but with a high end synthetic 2 stroke oil like Amsoil they do say you can get away with 100:1

[Fisherman]

Agreed, but with a high end synthetic 2 stroke oil like Amsoil they do say you can get away with 100:1

And no more fouled plugs.

[Deer Wrastler]

And no more fouled plugs.

might have to try that...do you think it would help a 2 stroke cold start easier with less oil?

[BPR 30-06]

Evinrude use 100;1 but you can run 50;1

50:1
1) What is my fuel/oil ratio? Johnson and Evinrude carbureted 2-stroke outboards since 1964 require a 50:1 fuel to oil mixture (2%) on engines without an automatic oiling system – 6 gallons of gas to 1 pint of outboard oil.Sep 5, 2012

[Woodsman]

Agreed, but with a high end synthetic 2 stroke oil like Amsoil they do say you can get away with 100:1

I think for 100 to 1 you are referring to Amsoil Sabre not designed for outboards though. That's is made for small engines like chainsaws.
Amsoil marine oil is 50 to 1.