How do I check engine oil and when should I replace the oil?

The level of your Scag mower’s engine oil level should be routinely checked after at least every 8 hours of operation or daily – refer to the owner’s manual for specific instructions.
The engine crankcase’s oil needs to be replaced without fail along with the oil filter after the first 20 hours of usage. After this, the engine oil can be replaced after about once in every 100 hours of usage or once in two-weeks, whichever comes first.