So, if you have purchased or are planning to purchase a motorized tool with a two-stroke engine, you will have to prepare a fuel mixture, which consists of gasoline and special oil for this type of engine.
When choosing oil, priority should be given to the one recommended by the manufacturer of your power tool, although this is not essential. You can use another oil, the main thing is that it should be of high quality and not too cheap.
Oil for two-stroke engines differs from other oils by the marking designated as 2T, which is indicated on the container label. The proportion of mixing oil with gasoline to obtain a fuel mixture is also given there.
For good quality oils, this value is usually 50:1, that is, one part of oil is required for 50 parts of gasoline.This proportion may be stated or duplicated as a percentage. In our case, a proportion of 50:1 corresponds to 2%.
Many people get confused about these proportions and percentages, and don’t actually understand how much oil they need to add to, say, 1 liter of gasoline. But here everything is very simple. If you see a ratio of 50:1, this means that 100 grams of oil should be added to 5 liters of gasoline, and 20 grams to 1 liter of gasoline.
If percentages are indicated on the packaging, for example, 2%, this means that for 1 liter of gasoline you need to add 20 grams of oil. If 3% was indicated, then you need to add 30 grams of oil to 1 liter of gasoline, etc.
What can we need to prepare a fuel mixture for filling into the tank of a two-stroke engine?
Will need
To do this you will need very little:
- plastic funnel;
- ordinary medical syringe;
- plastic liter container;
- petrol;
- oil for two-stroke engines.
The container can be taken from antifreeze or antifreeze for cars, although some motor tools come with a similar container with marks for gasoline and oil. But for greater accuracy, it is still better to use an ordinary syringe to remove oil and add it to gasoline.
How to prepare a fuel mixture for a two-stroke engine
First, pour gasoline into the bottle, which is recommended by the manufacturer of the power tool and is indicated in the operating instructions. Most often, the AI-92 is used for these purposes. If you take gasoline with a different octane number, there is a high probability that the engine will soon fail.
Next, you need to draw oil from the bottle with a syringe. Let me remind you that to create a ratio of 50:1 (or 2%), 1 liter of gasoline will require 20 grams of oil. By the way, medical syringes of this capacity are quite common.
Type 2T oil is usually red in color. This is done specifically so that your fuel mixture acquires the same color. Then it is difficult to confuse it with ordinary colorless gasoline and inadvertently pour it into the engine tank without adding oil.
We pour into our gasoline the exact volume of oil (in our case 20 grams) that we collected into the syringe. We close the container with a screw cap and shake vigorously several times to mix the contents well. After this procedure, our fuel mixture is completely ready for use.
Finally, I would like to remind you that you should not prepare the fuel mixture in large quantities. Manufacturers do not recommend storing gasoline mixed with oil for a long time. Prepare a volume of fuel mixture that would be enough for 1-2 refuelings.
And yet, if you are using high-quality oil, then there is no need to act here according to the saying: “you can’t spoil porridge with oil,” and increase its quantity compared to the volume indicated in the proportion. After all, this ratio was obtained both by theoretical calculations and repeatedly verified in practice as a result of numerous tests.
It is optimal both economically and in ensuring the reliability and durability of a two-stroke engine. Therefore, add no less or more oil to gasoline, but exactly as much as indicated on the label of the oil container for two-stroke engines.
