Many small agricultural vehicle engines use two-stroke cycle models. The fuel used for two-stroke engines is a mixture of gasoline and oil, typically in the ratio of 15:1 to 20:1. Using a mixture of oil as a fuel, at the same time play the role of lubrication of the moving parts, thus eliminating the need for a four-stroke lubrication system. The configuration and use of blended oils seems to be very simple, and the operators are often not careful and often go into misunderstandings. Misunderstanding 1: Indiscriminate use of ordinary motor oil. When configuring and using the mixed oil, the engine oil must use gasoline engine oil or LER-A two-stroke engine oil. Do not use ordinary engine oil or long-term gasoline and engine oil to ensure the normal lubrication of the machine parts. Misunderstanding 2: Confuse the difference between volume ratio and weight ratio. Different models have different proportion requirements. Similarly, the requirements for volume ratio will vary from model to model. The volumetric ratio is also called the volume ratio, that is, the same volume of the vessel, the proportion of the gasoline and the number of the engine oil are blended according to the required ratio. Since the specific gravity of engine oil and gasoline is different, the volume ratio and the weight ratio are different, and the volume ratio is 20:1, and if it is converted into a weight ratio, it should be 16:1. This is the most misunderstood for the operator. Misunderstanding 3: Gasoline and motor oil are used without mixing. Some robots can save time by not using a mixture of oils. However, if the fuel is not fully mixed, when the engine works, there will be a case where the gasoline is ignited and sinks into the bottom of the tank due to a large ratio, resulting in poor lubrication of the parts, resulting in increased wear of the light parts, and severe burnout of the heavy parts. . Misunderstanding 4: Do not prepare and use mixed oils in proportion. Most of the operators think that the engine oil is not much related to the results, and the resulting mixed oil sometimes has an excessive oil ratio, and sometimes the oil does not meet the requirements. this is actually wrong. If the oil concentration in the mixed oil is too large and exceeds the range stipulated by the technical requirements, a large part of the oil will be burned incompletely and drained. The engine will emit dark smoke, not only polluting the environment, but also causing a large amount of carbon deposition in the combustion chamber. And the exhaust muffler deposition, so that the combustion of combustible mixture is not smooth, power and economic decline, the life of components will be reduced.
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