Chain saws need gasoline, engine oil, and chain saw chain lubricating oil
1. For gasoline, only unleaded gasoline above No. 90 can be used. When adding gasoline, the fuel tank cap and the surrounding area of the fuel filler port must be cleaned before refueling to prevent debris from entering the fuel tank. The high branch saw should be placed on a flat place with the fuel tank cap facing up. Do not allow gasoline to spill out when refueling, and do not fill the tank too full. After refueling, be sure to tighten the fuel tank cap as far as possible by hand.
2. Only high-quality two-stroke engine oil should be used as the engine oil to ensure a long service life of the engine. Never use an ordinary four-stroke engine. When using other two-stroke engine oil, its model should reach tc grade quality. Poor quality gasoline or engine oil can damage the engine, seals, oil passages and fuel tanks.
3. The mixing ratio of gasoline and engine oil: the two-stroke engine oil for high-branch saw engines is 1:50, that is, 1 part of engine oil plus 50 parts of gasoline; the use of other tc-level engine oils is 1:25, that is, 1 part Add 25 parts gasoline to the engine oil. The mixing method is to pour engine oil into a fuel tank that allows fuel, then pour gasoline into it, and mix it evenly. Gasoline engine oil mixture will age, the general configuration should not exceed one month's usage. Special attention should be paid to avoid direct contact between gasoline and skin, and to avoid breathing gas from gasoline.
4. Use high-quality chain saw chain lubricating oil to keep the lubricating oil not lower than the oil level to reduce the wear of the chain and saw teeth. Since chain saw lubricating oil is completely discharged into the environment, ordinary lubricating oil is petroleum-based, non-degradable, and will pollute the environment. It is recommended to use degradable and environmentally friendly chain saw oil as much as possible. Many developed countries have rigid regulations on this. Avoid environmental pollution.