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When and How Do I Change My New Yanmar Tractor’s Oil?

We want to help you change your new Yanmar tractor’s oil.

If you do not feel that you understand these steps, or can perform them safely, consult your tractor dealer or local mechanic.

Time to get started.

New engine oil should be changed after the initial 50 hours of use.


  • If you must drain the engine oil while it is still hot, stay clear of the hot engine oil to avoid being burned.

  • Always wear eye protection.

  • Failure to comply could result in death or serious injury.


To refuel the engine oil, you must refuel slowly after removing the dipstick and both caps. If you refuel rapidly, the oil intrusion to the intake occurs through the PCV valve of the valve cover. It will result in an oil hammer at the engine start, which may cause damage to the engine.


  • Only use the engine oil specified. Other engine oils may affect warranty coverage, cause internal engine components to seize, and/or shorten engine life.

  • Prevent dirt and debris from contaminating the engine oil. Carefully clean the oil cap/dipstick and the surrounding area before you remove the cap.

  • Never mix different types of engine oil. This may adversely affect the lubricating properties of the engine oil.

  • Never overfill. Overfilling may result in white exhaust smoke, engine overspeed, or internal damage.

  • Always be environmentally responsible.

  • Follow the guidelines of the EPA or other governmental agencies for the proper disposal of hazardous materials such as engine oil, diesel fuel, and engine coolant. Consult the local authorities or reclamation facility.

  • Never dispose of hazardous materials irresponsibly by dumping them into a sewer, on the ground, or into groundwater or waterways.

  • Failure to follow these procedures may seriously harm the environment.


The engine oil on a new engine becomes contaminated from the initial 50-hour break-in of the internal parts. It is very important that the initial oil and filter change is performed as scheduled.

Note: The oil drain plug may be in another location if an optional oil pan is used.