During a pre-operational inspection of an excavator on a construction site near Toronto, you notice the engine oil dipstick indicates the oil level is 5 mm below the 'add' mark. What is the most appropriate action to take?

Question: During a pre-operational inspection of an excavator on a construction site near Toronto, you notice the engine oil dipstick indicates the oil level is 5 mm below the 'add' mark. What is the most appropriate action to take?

Answer options: ✅ Add the manufacturer-recommended type and amount of engine oil immediately to bring it to the 'full' mark.

• Proceed with operation but monitor the oil pressure gauge closely for the first hour.
• Check the oil level again after the engine has run for 15 minutes to confirm the reading.
• Document the low level in the logbook and inform maintenance at the end of the shift.

Correct answer: Add the manufacturer-recommended type and amount of engine oil immediately to bring it to the 'full' mark.

Explanation: Low engine oil can lead to severe engine damage. The OPSWA curriculum emphasizes addressing fluid levels immediately if they are below safe operating parameters during a pre-operational check. Adding oil to the 'full' mark ensures proper lubrication and prevents potential component failure.