How do I mix a 1:1 ratio - Computers & Internet

24/1 is the correct ratio. I certainly wouldn't go 50/1 but you could split the difference with a good synthetic.

1957 Johnson Seahorse QD18 10hp Oil Mixture - Marine ...

http://www.marineengine.com > showthread > 10690-1...
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1957 Johnson QDL-18 10hp (recommended oil and ratio)

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https://www.google.com/search?q=1957+johnson+outboard+10+hp+fuel+oil+ratio

What is the mix ratio for a Johnson outboard motor?

Any Johnson outboard motor built since 1964 requires a 50/1 fuel ratio. Motors built prior to that date require a 32/1 ratio, with the exception of a few fishing motors built prior to 1955 that use a 16/1 ratio.

Feb. 22, 2021

What is the mixing ratio for a Johnson outboard motor? - Mvorganizing.org

The exact mix ratio for Cub Cadet trimmers varies, depending upon the exact model. Cub Cadet's ST 228 2-cycle trimmer model uses a mix of 2.6 fluid ounces of 2-cycle oil blended with 1 gallon of unleaded gasoline or a 50-to-1 ratio. This equates to 20 milliliters of 2-cycle oil to 1 liter of gas. The Cub Cadet BC 210, on the other hand, requires a mix ratio of 40 to 1, or 3.2 fluid ounces of 2-cycle engine oil to 1 gallon of unleaded gasoline

Gas to oil ratio is a function of the oil you are using. Mix according to what the oil says not what the manufacturer of the engine says. Those ratios could/may be the same. IF you mix 16:1 oil (do they even sell that anymore ?) at a 50:1 ratio it will destroy the engine. There will be no problems at 16:1 as the oil recommends.
I have used 100:1 Optimoil (?) when I can find it instead of the recommended 48:1 of my 2cycle. No problems.
Mix the oil in ratio the oil manufacturer says to mix.

Hi anon, the usual ratio for most 2 stroke engines is 40:1. The 1 being two stroke oil

mix the fuel to 40:1 ratio, read the mix instructions on your 2cycle oil.

2 choices here
if you want to use the entire 3.2 oz bottle you need to add it to 1.25 gallons of fuel to = 50:1 ratio

if you have 1 gallon of fuel you need to add 2.6 oz of oil to the fuel to equal 50:1 ratio

hope that helps

FUELING ENGINE
WARNING: Remove fuel cap slowly
when refueling.
HELPFUL TIP
To obtain the correct oilmix
ratio, pour 3.2 ounces of
2--cycle synthetic oil into
one gallon of fresh gas.
This engine is certified to operate on unleaded
gasoline. Before operation, gasoline must be
mixed with a good quality synthetic 2-cycle
air-cooled engine oil designed to be mixed at a
ratio of 40:1. Poulan/Weed Eater brand
synthetic oil is recommended.Mix gasoline and
oil at a ratio of 40:1. A 40:1 ratio is obtained by
mixing 3.2 ounces (95ml) of oil with 1 gallon (4
liters) of unleaded gasoline. DO NOT USE
automotive oil or marine oil.

50:1 ratio