C Service is performed every:

• A. 24,000 miles or 12 months
• B. 6,000 miles or 6 months
• C. 12,000 miles or 6 months
• D. 48,000 miles or 24 months

Answer: (A)

Maintenance schedules rely on two factors: how far you’ve driven and how much time has passed. A C service is a more thorough, mid-cycle check that guards against wear from mileage while also refreshing fluids that can degrade with time. Because some parts wear with driving and others lose performance or contaminate fluids as time goes by, the recommended point is to perform the service at the earlier of these two thresholds. That keeps essential maintenance from being delayed and avoids unnecessary, overly frequent servicing. So this option reflects a balanced, mid-range interval: not so soon that you’re over-servicing, and not so late that you miss important checks. The other intervals described would either trigger too early or too late for a comprehensive service.