Hi what is the ratio of oil to petrol on the 26cc petrol strimmer

Mixing ratios

For a mixing ratio of 1 : 50 you need 5 litres of petrol and 0.10 litres (100cm³) of STIHL two-stroke oil.

The recommended ratio of fuel mix is 1 part oil to 50 parts petrol. For example, if you are using 5L of petrol, you will need 0.1L (100ml) of 2 Stroke Oil. To mix the fuel, pour the 2 Stroke engine oil into a mixing can that is approved for use with fuel, then add the petrol.

Use a 40:1 two-cycle oil mix ratio. One gallon of gasoline combined with 3.2 oz of two-cycle engine oil. Unsure of the age of your equipment? Use the 40:1 mixture.

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.

If you`re using a different brand of 2-Stroke oil, you`ll need to mix at 25:1 (40mls oil per 1 litre fuel). Petrol has limited shelf life (as low as 30 days), so always mix with fresh regular unleaded purchased from a reputable large volume fuel supplier.

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.

Mix 2-Stroke fuel in 3 easy steps

Step 1: You`ll need STIHL 2-Stroke oil, an empty and clean fuel can and fresh unleaded fuel from a reputable petrol station. Step 2: Mix at 50:1 (20mls oil per 1L fuel) when you`re using STIHL 2-Stroke oil. If you`re mixing a larger quantity, check out our useful mixing chart.

Unlike a four-stroke engine, a unique feature of a two-stroke engine is that they do not have an internal oil reservoir. Instead, two-stroke engines require the owner to mix oil into the fuel at a predetermined ratio in order to ensure the engine receives adequate lubrication during operation.

Unlike other four-strokes, the 4-MIX engine runs on a standard petrol-oil mix (1:50). A completely new feature is that the petrol-oil mix is distributed through the engine via a bypass channel in the cylinder head for complete lubrication.

If you can`t find the specific ratio for your mix, 40:1 is accepted as an average ratio for two-stroke engines. This is 125mls of two stroke oil to 5L of fuel.

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 high-octane gas and 0.10 litres (100 ml) of STIHL two-stroke oil.

If your manufacturer recommends a 50:1 fuel/oil mix, it means you need 50 parts of gas to one part two-stroke oil. To mix one gallon of fuel at 50:1, add 2.6 ounces of two-stroke oil to one gallon of gas, as shown in the chart below.

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. For detailed instructions on what you need and how to mix a batch are here.