B Service is performed every:

• A. 6000 miles or 6 months
• B. 24000 miles or 12 months
• C. 3000 miles or 3 months
• D. 12000 miles or 6 months

Answer: (A)

The main idea is that maintenance schedules use both mileage and time, and the B service is a more thorough check that happens at regular intervals. In many maintenance plans, B service is performed every six months or six thousand miles, whichever comes first. This timing keeps critical systems and fluids in good shape and catches wear before it becomes a bigger issue.

Among the options, the six thousand miles or six months choice matches this common cadence, making it the best fit. The others propose intervals that are either too long, too short, or inconsistent with the typical B service pattern. As always, follow the vehicle’s manual, since schedules can vary by model.