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For a 40:1 mixture, use 3.2 fluid ounces of oil per gallon of gas. For a 32:1 mixture, use 4 fluid ounces of oil per gallon of gas.
Different equipment manufacturers recommend different oil mix ratios, complicating matters. Most modern chainsaws, string trimmers, leaf blowers and other small-engine two-stroke equipment recommend a 50:1 oil mix ratio, but some recommend 40:1 and older two-stroke equipment might even call for 32:1.
This ratio indicates how much fresh, regular unleaded gasoline (containing no more than 10% ethanol) to mix with how much oil. For all Remington 2-cycle products, the ratio is 40:1. This means you`ll want to add 3.2 oz of oil to every gallon of gasoline.
For a mixing ratio of 1 : 50 you need 5 litres of high-octane gas and 0.10 litres (100 ml) of STIHL two-stroke oil.
1:25 = 1 part oil + 25 parts petrol, or 40 ml oil per litre of petrol when using other brands of oil. Any two-stroke engine oil you use in your petrol gardening tool must have the TC classification.
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.

40 to 1 ratio

This equals 25mls of two stroke oil to 1 litre of petrol.

A 100ml bottle is suitable for mixing with 5 litres of fuel to achieve a 50:1 fuel-oil ratio.
To get an idea of how much oil you need; the gap between the marks on the dipstick usually represents around 1 litre of oil, so you know that if your oil mark was at the minimum, you need around a litre to top it up. If it`s only halfway down, you probably need around half a litre.
In fact, the 4 stroke engine will pollute less burning 50:1 than a 2 stroke using the same fuel. This is because the valve system on a 4 stroke provides more complete burning. You better never run 2 stroke on pure gas, though… That will quickly ruin the engine.
The stoichiometric mixture for a gasoline engine is the ideal ratio of air to fuel that burns all fuel with no excess air. For gasoline fuel, the stoichiometric air–fuel mixture is about 14.7:1 i.e. for every one gram of fuel, 14.7 grams of air are required.
The fuel ratio is defined by the following equation: (1.1)Fuel ratio=Fixed carbon (%)/Volatile matter (%).
How much oil does your car take? The amount of oil car engines require is roughly between 4 and 8 litres. This differs greatly between vehicles, though generally: Four-cylinder engines need around 4.5 litres of oil.
A: 25 :1 ratio is 25 fluid ounces of gas per 1 fluid ounce of oil. So divide the total amount of fluid ounces of gas by 25 to find the amount of oil to add.
Twenty five to one (25:1) is one of the easiest 2 stroke ratios to calculate, you simply multiply the litre amount by 4 and add a zero.
Mixing the 95 and 98 octane fuels will not cause any problems.
The results are typically given in percentages, with a recommended cautionary limit of 1.5 percent and a critical limit of less than 5 percent. When fuel levels are much higher than 5 percent, there is a risk of engine fire.
Explanation: When two quantities are taken in the same proportion, they are said to be in the ratio of 1:1. For example, 1 pound of cake contains, flour and sugar in a 1 : 1 ratio. That means in this mixture both the items are equally balanced, for 100 grams of flour 100 grams of sugar needs to be added.
Pre-Mixed Fuel Burns Cleaner. Premium fuel is not only better for your equipment—it`s better for the environment, too. High-octane gas and high-quality, synthetic oil are odor-free and burn cleanly, so you can operate your two-stroke equipment worry-free.
A ratio is a unit-less way of expressing the amount of one quantity relative to another. So for a ratio of product to water of 1:4, for every 1 litre of concentrated product you would need to add 4 litres of water to make up a total of 5 litres of diluted liquid.
Yes, 1 L = 1000 ml.
A liter is a metric unit of volume primarily used to measure liquids. The abbreviation of a liter is “L” or “l”. Smaller quantities of liquid are measured in milliliters (mL). 1 liter is equal to 1000 milliliters.
– Petroleum: 1 litre = 0.79 kilogram; – Gas, diesel, light fuel oil: 1 litre = 0.84 kilogram; – Heavy fuel oil: 1 litre = 0,96 kilogram; – Lubricants: 1 litre = 0.88 kilogram.
This can range from 1 liter per 1,500 km to 1 liter every 5,000 km. Excessive oil consumption can also occur in modern engines. It is advisable to check oil as a preventative measure. Always fill up with engine oil prescribed by the car manufacturer.

Discover Relevant Questions and Answers for Your Specific Issue

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Fuel,gas oil mixture – Echo 30.1CC Chainsaw With a 14 In.bar and Chain
ANSWER : The fuel/oil should be in the ratio 50 to 1

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Fuel mix oil to fuel ratio
ANSWER : The oil ratio is 50:1
Here is the website: http://homeguides.sfgate.com/oil-fuel-mixture-farm-tough-husqvarna-chainsaw-83933.html What Is the Oil Fuel Mixture for Farm Tough Husqvarna Chainsaw

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Pb 2105 I need to know the fuel to oil mixture for my Echo PB-2105 blower, any ideas?
ANSWER : 50:1

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What ratio is the fuel mixture for a Ryobi PCN 3335model chainsaw
ANSWER : 25 to 1 regards Phil.

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What is fuel mixture for solo motosage 60135
ANSWER : Some say 100:1 with synthetics. I use synthetics on 80cc and larger saws in the range of 40/50:1. I never go higher than that….saws are just too expensive to be stepping over dollars to pick up pennies. A lot of people are trying to make mixing ratios like some kind of mystery voodoo. You’ll always be fine in the 40/50:1 range with a good synthetic oil.

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Homelite d3350b what is fuel oil mix i was told i could use 50 to 1 because the new oils are better?????
ANSWER : Buy a good quality oil and mix it to the OIL manufacturers recommendation regardless of what the chainsaw manual says. If you are poking around the barn and find an old can of Homelite 2 cycle oil that says mix 25:1 mix it at that ratio.
All modern oils, chainsaws, and the EPA recommend 50:1. There has been great improvement in 2 cycle technology over the years. To rich a mix causes carbon build up on the piston that breaks loose and scores the piston and cylinder, and it stinks!

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Replaceing fuel line in polan 3300 chain saw – Poulan Pro 42CC 2 Cycle Chainsaw, 18"
ANSWER : Hi owjbhend…
Use a piece of wire and insert it into the fuel line, then bend a hook in the end and hook it over the end of the fuel line…lubricate the fuel line with some vaseoline very lightly…about the first one inch of the fuel line and then use your fingers to start the fuel line into the tank, once you have the fuel line in the tank give enough to hook the fuel filter to and so it can be dropped back into the tank.
Below is a drawing of how to route the fuel lines.
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The saw starts up fine, runs fine but not for long. it runs for about 1 minute and dies. like it is out of fuel or sucking air, i noticed there is no filter on the suction line and there is another nipple entering the fuel tank which appears to need a hose on it , is this just a return line, or should the long line in side the tank press on to this nipple? thanks,
ANSWER : I’ve had my pp4218 for about 2 years and the fuel lines have rotted. I’m thinging from ethanol in the gas. However, I’m replacing them and cannot tell which lines go where. Does the large line from the bubble go to the filter and the little line return?

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