What are the major service intervals?
Major service intervals are not universal; most cars schedule major work around 30,000, 60,000, and 90,000 miles (roughly every 2–3 years), with some brands extending longer if synthetic oil is used. Always check your owner’s manual or dealer for your exact schedule.
Understanding when a vehicle needs a major service helps keep it reliable and safe. This article explains what a major service typically includes, how intervals are determined, how to follow the schedule, and steps drivers can take to stay on track with maintenance expectations across different brands and driving conditions.
What counts as a major service?
In modern automotive maintenance, a major service goes beyond routine oil changes and covers a broader inspection of wear items and essential systems. The exact checklist varies by manufacturer, but the following items are commonly included in a major service across many vehicles.
- Engine oil and oil filter replacement
- Air filter and cabin air filter inspection/replacement
- Brake system inspection, including pad/disc wear and brake fluid check
- Fluids inspection and top-up or replacement as needed (coolant, brake fluid, transmission fluid where applicable, power steering fluid)
- Spark plugs or ignition components replacement as scheduled
- Belt(s) and hose inspection and replacement if needed
- Fuel system inspection and fuel filter replacement where applicable
- Battery test and charging system check
- Tire condition, tread depth, and rotation/semi-annual alignment check where required
- Electrical system check, lights, wipers, and onboard computer (ECU) software updates
Concluding paragraph: While this list represents common items in many major services, exact contents depend on the make, model, and engine type. Always confirm with your owner’s manual or dealership for your specific vehicle.
Typical intervals you’ll see in manuals
Manufacturers publish service schedules that can be mileage-based, time-based, or a combination of both. The most common pattern for many gasoline vehicles today is a major service at roughly 30,000 miles (48,000 km), with additional major services at 60,000 and 90,000 miles, depending on the model. Some brands allow longer intervals—up to 60,000–100,000 miles—when synthetic oil is used or driving conditions are favorable. Harsh driving conditions (short trips, heavy towing, extreme temperatures) often warrants more frequent service.
Concluding paragraph: Always align with the exact schedule in your vehicle’s manual. If in doubt, consult the dealer or a trusted mechanic to tailor maintenance to your driving habits and environment.
How to follow the schedule
Staying on top of major service intervals requires a proactive approach. Here’s how to keep track and ensure timely maintenance.
- Keep a copy of the manufacturer’s maintenance schedule and a log of all service visits.
- Set reminders in your phone, calendar, or a vehicle maintenance app for upcoming intervals based on mileage and time.
- If you drive under severe conditions (city stops, heavy loads, frequent short trips), plan for more frequent inspections even if mileage is low.
Concluding paragraph: A disciplined maintenance routine reduces the risk of breakdowns, preserves performance, and can protect resale value over time.
What drivers should do now
If you’re unsure when your next major service is due, take these practical steps today.
- Check your owner’s manual or the maintenance schedule in your vehicle’s infotainment/app to confirm the due date or mileage.
- Look for any service reminder lights on the dashboard and follow the prompts.
- Contact your dealer or a trusted independent shop to verify the recommended interval for your exact model and engine variant.
Concluding paragraph: Having a precise plan and record of completed services helps avoid missed maintenance and supports long-term reliability.
Summary
Major service intervals are not uniform across all vehicles. While many cars schedule major work at about 30,000, 60,000, and 90,000 miles, some brands extend these intervals with synthetic oils or favorable driving conditions. Always rely on the official manufacturer schedule found in the owner’s manual and maintain complete service records. Understanding and following these intervals is a practical way to protect your car’s reliability, safety, and value.
