How many times a lawn mower's oil needs to be changed approximately in a year?

If the lawn mower is used for 20 to 30 hours a year, it is recommended to change the engine oil every two years.

If the lawn mower is used for more than 50 hours a year, it is recommended to change the engine oil at least once a year.

Calculated by usage hours: Generally speaking, it is recommended to change the engine oil every 50 hours of use. However, if the lawn mower operates in a high-temperature or dusty environment, the frequency of changing the engine oil should be shortened to once every 25 hours.

By time: It is recommended to change the engine oil every 50 to 100 hours or every 3 to 6 months.

In conclusion, the number of oil changes for a lawn mower within one year varies depending on the usage frequency and environment, ranging from 0 to 2 times. The specific replacement cycle should refer to the manual provided by the lawn mower manufacturer or consult a professional