How to Oil a Chainsaw

For starters, always use the right oil. In case you are not sure, read through the manufacturer’s guide. The major benefit of using the right oil is that it ensures the longevity of the chainsaw. Also, it prevents potential and hazardous problems from arising.

Chainsaws use different kinds of oils to lubricate the bar and the engine.

How to Oil a Chainsaw

  1. Fill the gas can. The amount of fuel will depend on the fuel capacity of the chainsaw. Set the two cans on the ground just next to the chainsaw.
  2. Unscrew the nozzle of the empty can. Pour in the fuel into the empty gas can.
  3. Secure the nozzle of the mixed chainsaw fuel and secure the end with a duct. Label it using a permanent to avoid someone accidentally using it on another machine. Carefully examine the gas cap area on the chainsaw. Ensure it is clean. Wipe off any debris or fuel spills using a piece of cloth.
  4. Position your saw on the side so that the gas cup is looking upwards. While still in that position, slowly lift the grip on the fuel cap. Turn it clockwise approximately quarter a turn and remove it from the saw.
  5. Pour the gas slowly into the tank until full. A funnel may be needed as it makes pouring easy. Once you are done, replace the cup. Turn it clockwise till it tightens.

What You Will Need

  1. Octane gasoline (The amount will depend on the specifications of the chainsaw. Different brands and models have different specifications)
  2. Gallon gas cans
  3. Two-cycle engine oil
  4. Permanent marker
  5. Wash rug
  6. Bar oil
  7. Funnel (it is optional)
  8. Duct tape


The oil and fuel mixture has a limited shelf life of approximately three months. Any fuel older than three months may be degraded and may prevent the chainsaw from starting.

A smaller may need about a gallon of gas to fill it. Larger saw chains can hold up to one-fifth of a gallon. However, always ensure you comply with the instructions given by the manufacturer.


To prevent the chain in the saw from damage, destruction or overheating, always use the bar oil. Pointing the tip of the saw to the ground and rev the engine for a few seconds is the sure way of determining if the lubrication system is okay.

How will you know the bar is properly oiled? It will release a fine oil spray as the chain is spinning.

Lubricating the Sprocket

  1. The majority of the chainsaws will have a sprocket on the far end of the guide bar. It helps the chain to rotate efficiently and with friction. The sprocket is mostly found in larger chain saws.
  2. The sprockets need to be lubricated independently. The good news is that lubricating them is very easy.
  3. A grease gun specifically designed for the sprocket will be needed. The chainsaw grease gun has a small piercing tip.
  4. It is pumped by pushing the grease. Locate the grease hole on the guide bar and place the tip of the grease gun on it.
  5. Push the other end of the grease pump and continuously pump till small amounts of grease start appearing. They will appear on the edges of the hole. 2 to 3 pumps will be enough.

When to Lubricate

Lubricate whenever the gas and oil level run low or out of oil. As for the sprocket, lubricate it whenever the chainsaw is refilled.

Also see: How to Use a Chainsaw

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