Chainsaws require the use of gasoline, engine oil and chain saw chain lubricants:

Gasoline can only use unleaded gasoline above 90. When adding gasoline, the fuel tank cap and the filler port must be cleaned before refueling to prevent debris from entering the tank. The high stake saw should be placed in a flat place with the fuel tank cap facing up. When you are refueling, do not let the fuel come out. Do not fill the tank too full. Be sure to tighten the fuel tank cap with your hand after refueling.

The oil can only use the high-quality two-stroke engine oil to ensure the long service life of the engine. Never use an ordinary four-stroke engine. When using other two-stroke engine oils, the type should be TC grade quality. Poor quality gasoline or oil can damage the engine, seals, oil gallery, and fuel tank.

Mixing ratio of gasoline and engine oil: Use high-branch saw engine-specific two-stroke engine oil to be 1:50, that is, 1 part of engine oil to mix 50 parts of gasoline; use other TC-level engine oil to be 1:25, that is, 1 part of engine oil to be mixed 25 Gasoline. The mixing method is to pour the oil into a fuel tank that is allowed to be filled with fuel, then fill it with gasoline and mix well. Gasoline engine oil mixture will age, the general configuration should not exceed one month's usage. It is important to pay attention to avoid direct contact between gasoline and skin, and to avoid the gas that is emitted from breathing gasoline.

Use high-quality chain saw chain lubricants to keep the lubricant below the oil level to reduce chain and serration wear. Because the chain saw lubricant will be completely discharged into the environment, ordinary lubricants are petroleum-based, cannot be degraded, and can pollute the environment. It is recommended to use degradable environmentally friendly chain saw oil as much as possible, and many developed countries have hard regulations. To avoid environmental pollution.