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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.

Drain the engine oil as follows:

1. Make sure the engine is level.

2. Start the engine and bring it up to the operating temperature.

3. Stop the engine.

4. Remove the oil filler cap (Figure 5-1, (1)) to vent the engine crankcase and allow the engine oil to drain more easily.

5. Position a container under the engine to collect waste oil.

6. Remove the oil drain plug (Figure 5-2, (1)). Allow the oil to drain.

7. After all the oil has been drained from the engine, reinstall the oil drain plug (Figure 5-2, (1)) and tighten to 39.8 - 47.0 ft-lb(53.9 - 63.7 N-m, 5.5 - 6.5 kgf-m).

8. Dispose of the used oil properly.

Remove the engine oil filter as follows:

1. Turn the engine oil filter (Figure 5-2, (2)) counterclockwise (Figure 5-2, (4)) using a filter wrench.

2. Clean the engine oil filter mounting face.

3. Lightly coat the gasket on the new oil filter with clean engine oil. Install the new engine oil filter manually by turning it clockwise (Figure 5-2, (3)) until it contacts the mounting surface. Tighten to 14 - 17 ft-lb (19.6 - 23.5 N-m, 2.0 - 2.4 kgf-m or one additional turn using the filter wrench.

4. Add the new engine oil to the engine.


Adding Engine Oil:

1. Make sure the engine is level.

2. Remove the oil cap.

3. Add the indicated amountof engine oil at the top or side engine oil filler port.

4. Wait three minutes and check the oil level.

5. Add more oil if necessary.

6. Replace the oil cap and hand-tighten. Over-tightening may damage the cap.


Note: These are the engine oil capacities associated with a "deep standard" oil pan. Oil capacity will vary depending on which optional oil pan is used. Refer to the operation manual provided by the driven machine manufacturer for the actual engine oil capacity of your machine.

The following are the engine oil capacities for various YANMAR TNM and TNV engines:

If you need any further help or have any questions about Yanmar engine oil, tractors, or anything else, please contact your dealer, local mechanic, or call us at 602-734-9944. Please ask about our current new and used tractor supply.

Team Tractor Ranch - #1 Tractor Dealer in Arizona. We sell and service most major brands of tractors including Yanmar, Kubota, John Deere, TYM, Mahindra, Kioti, Case, New Holland, Massey Ferguson, Ford, Deutz, Case IH, Farmall, International Harvester, Branson Tractors, LS, Shibura, Claas Tractor, McCormick Tractors, Valtra, Solis, YTO, Montana, and Nortrac.

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