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It means there are 50 for every 1.

Ex. 50 ants for every 1 ant hill.

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It`s highly recommended a fuel to oil ratio of 50:1 for most 2-stroke engines. This means that for every 50 parts of fuel, there should 1 part of oil.
For example to mix 50:1 you use 50 parts fuel to 1 part oil, which equals one litre of fuel to 20 millilitres of oil.
The 50+1 rule guards against this. The name of the rule refers to the need for members of a club to hold 50 percent, plus one more vote, of voting rights – i.e. a majority. In short, it means that clubs – and, by extension, the fans – have the ultimate say in how they are run, not an outside influence or investor.
Ratios compare two numbers, usually by dividing them. If you are comparing one data point (A) to another data point (B), your formula would be A/B. This means you are dividing information A by information B. For example, if A is five and B is 10, your ratio will be 5/10.
For example to mix 50:1 you use 50 parts fuel to 1 part oil, which equals one litre of fuel to 20 millilitres of oil or 1 gallon of fuel to 2.56 fluid ounces of oil.
Mix at 50:1 (20mls oil per 1 litre fuel) when you`re using STIHL 2-Stroke oil. To prolong the life of your 2-Stroke fuel mix you can add STIHL fuel stabiliser to extend the fuel`s shelf life up to 12 months. 15ml of STIHL fuel stabiliser will treat 5 litres of fuel.
Any mixture greater than 14.7:1 is considered a lean mixture; any less than 14.7:1 is a rich mixture – given perfect (ideal) “test” fuel (gasoline consisting of solely n-heptane and iso-octane).
100:1 – Mix 50ml of oil per 5ltrs of fuel.

Recommended by Yamaha and Suzuki for most of their small two stroke engines up to about 30hp, this ratio requires the least amount of TCW3 two stroke oil. The result of using this ratio (less oil) is reduced spark plug fouling and less smoke.

For a mixing ratio of 1 : 50 you need 5 litres of petrol and 0.10 litres (100cm³) of STIHL two-stroke oil.
For a 50:1 ratio of gas to oil, use 2.6 fluid ounces of oil per gallon of gas.
For a mixing ratio of 1 : 50 you need 5 litres of petrol and 0.10 litres (100cm³) of STIHL two-stroke oil.
40 to 1 ratio

This equals 25mls of two stroke oil to 1 litre of petrol. It is pretty easy to calculate, you just multiply the litre amount by 25.

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Do I need gas and oil mix – Poulan Super 250a Chainsaw Plate
ANSWER : I think Poulan uses a 40:1 ratio to one gallon of gas, however I have always used 50:1 the same as my sthl saws with no issue. I would rather have more oil mix that to little.

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Oil ratio which is better, 25:1 or 50:1 ratio of oil and gas? Owner manual says anywhere in between these two ratios.
ANSWER : I use one of those small 2.6 oz oil containers in a gallon (128 oz) to give a 50:1 mix. If you want more oil in your mix add another container – but it will be more expensive and waste oil.

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What is ment by 50 to 1 mix
ANSWER : 50 to one is a ratio of fuel to lubricating oil. Typically 50 parts petrol/gasoline to one part two stroke oil.

Oil typically comes in a special plastic bottle that incoporates a measure. Simply squeeze the right ammount of oil into the little chamber and add to 5 litres of gas.

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How to measure 2 stroke oil gas – Troy Bilt 31cc Quickshift Blowervac, Model No. Tb310qs
ANSWER : Depending on the mix of oil to gas you can purchase a small bottle to add to the gas. I believe it is 8oz. to a gal. of gas. This should give you approx. 50:1 ratio. Hope this helps.

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How do u mix the 50/1 ratio oil and gas mixture
ANSWER : Mix 2 1/2 oz of 2 cycle oil into 1 gal of gas

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What is the oil/gas mix ratio? – Husqvarna , No.455 Rancher, 20" Gas – Powered Chainsaw
ANSWER : 50:1 ratio 2.6 fl oz of 2 stroke oil to 1 gal of fuel

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Ineed the proper mix for gas. for a Poulan pro 262 18in. chain saw.
ANSWER : Hi sephil99125…
50:1 oil to gas ratio
1 pint of 2 cycle oil to 6 gallons of gasoline
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ANSWER : 40 to one is a good mix

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