Oil Capacity: 1.5 quarts (1.4L)
Note:
- It is important to use the correct oil type to ensure the proper operation and longevity of your Onan 12.5 engine. SAE 30W motor oil is recommended for general use, but you may need to use a different oil type depending on the operating conditions of the engine.
- Failure to use the correct oil can lead to premature engine wear and/or failure, so it is important to check your engine's oil regularly and change it when necessary.