Things You'll Need:
- 30-weight lawnmower oil
- Funnel
- Paper towel or rag
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Step 1
Check your manual to determine what type of lawnmower oil you need. Most lawn mowers use 30-weight oil.
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Step 2
Locate the oil tank on your lawn mower. If you have a dipstick, you can check the oil level with it; for the best results, though, drain the old oil rather than just adding new oil to it.
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Step 3
Drain the old oil from your lawnmower. If you have to tip the lawn mower to do this, remove the fuel and disconnect the spark plug wire for safety purposes.
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Step 4
Take the lid off the oil tank, insert a funnel and begin to pour in the oil. You may want to take the funnel out to check the level of the oil.
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Step 5
Fill the tank to the desired level, replace the oil tank lid and wipe off any excess oil. If necessary, reconnect the spark plug wire and fill the fuel tank.
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Step 6
Start the lawn mower and allow it to run for 30 seconds before turning it off. Wait 30 seconds and then check the oil level. Put more oil into the tank if the oil level reads below full.






