Car Maintenance Schedule by Mileage: What's Actually Due

Every 5,000–7,500 miles

• Oil and filter (synthetic can stretch to 7,500–10,000 on many engines)
• Tire rotation
• Check all fluids, belts, hoses, and brake pad thickness

Every 15,000–30,000 miles

• Engine air filter and cabin filter
• Brake fluid test (flush at 2–3 years regardless)
• Transmission fluid check; drain-and-fill at 30k–60k depending on use

Around 60,000 miles

• Spark plugs on many engines (iridium plugs go to 100k)
• Coolant flush if not long-life
• Serpentine belt inspection
• Differential and transfer case fluid on trucks, SUVs, and AWD
• Shocks and struts inspection

Around 90,000–105,000 miles

• Timing belt (if equipped) with water pump
• Spark plugs and coils inspection
• Coolant flush
• Battery is likely on its second or third replacement by now

What NC conditions change

Heat is the enemy of batteries and A/C. Pollen kills cabin filters. Gravel roads in Iredell, Alexander, and Wilkes eat suspension bushings. If you tow a boat to Lake Norman, treat your transmission and differential fluid intervals as 'severe service' and cut them in half.

What you can skip

Fuel system 'cleanings' sold on a dealer menu, throttle body services that aren't fixing a symptom, and engine flushes. Most 'lifetime' fluids aren't, though — transmission fluid especially.