Question 1: How often should you change the engine oil in a typical vehicle?

• Every 10,000 to 15,000 miles
• Every 3,000 to 7,500 miles (Correct answer)
• Every 30,000 miles
• Only when the engine overheats

Correct answer: Every 3,000 to 7,500 miles

Engine oil lubricates moving parts, cools the engine, and cleans internal components, all vital for engine health. While specific intervals vary by vehicle manufacturer and oil type (conventional vs. synthetic), a general guideline for changing engine oil is every 3,000 to 7,500 miles. Regular oil changes are crucial for engine longevity, performance, and preventing premature wear.