Car Maintenance Schedule by Mileage: the 30k / 60k / 90k Checklist
Most cars follow the same rhythm: oil and tires every 5,000–7,500 miles, wear items around 30,000, fluids and belts around 60,000, and major systems around 90,000. Your owner's manual is the final word for your exact model — this checklist covers what almost every schedule has in common.
The full schedule at a glance
| Interval | What to do |
|---|---|
| Every 5,000–7,500 mi | Oil & filter change, tire rotation, pressure check, visual brake inspection |
| Every 15,000–30,000 mi | Engine air filter, cabin filter, brake inspection, fluid levels (coolant, brake, power steering), battery test |
| 30,000 mi | Replace filters, inspect suspension and tires for uneven wear, check and top up all fluids |
| 60,000 mi | Transmission fluid & filter, inspect timing/serpentine belts, brake pads & rotors, fuel system cleaning, coolant |
| 90,000–100,000 mi | Timing belt (if not done at 60k), spark plugs, radiator & heater hoses, gaskets, suspension components |
30,000 miles: light wear
The 30k service is mostly about filters and inspections. Replace the engine air filter and cabin filter, rotate the tires and look for uneven wear patterns, and check every fluid — engine oil, coolant, brake, transmission and power steering. Skipping this service is cheap to fix; skipping the next two isn't.
60,000 miles: fluids and belts
By 60k, deeper components need attention. Aging transmission fluid should be replaced to keep shifts smooth, belts inspected for cracking or glazing, brake pads and rotors measured, and the fuel system cleaned of carbon buildup. This is the service that decides whether your car reaches 150k gracefully.
90,000 miles: major systems
If the timing belt wasn't replaced at 60k, do it now — a snapped timing belt can destroy an interference engine without warning. Rubber hoses and gaskets go brittle with age and heat, so radiator hoses, heater hoses and valve cover gaskets should be inspected and replaced if cracking or leaking. Spark plugs are typically due around this mileage too.
Severe driving shortens every interval
Frequent short trips, stop-and-go traffic, towing, dusty roads and temperature extremes all count as "severe" use in most manuals — and they can cut recommended intervals by up to half. If that sounds like your commute, service earlier than the schedule says. The same logic applies to oil change intervals.
How to actually stick to the schedule
Knowing the schedule is the easy part — remembering where your car is on it two years from now is what fails. ServiceLog closes that gap:
- Log every service with its mileage. Each oil change, filter, belt or brake job is recorded with the date and odometer reading, so you always know what was done and when.
- Set reminders for the next milestone. When the 60k service approaches, your iPhone tells you — not a faded windshield sticker.
- Check your history before paying for anything. Shops sometimes recommend services you've already had. Your log is the receipt-backed answer.
Frequently asked questions
What is the 30-60-90 maintenance schedule?
The major service milestones most vehicles hit at 30,000, 60,000 and 90,000 miles: light wear items at 30k, fluids and belts at 60k, and major systems like the timing belt and hoses at 90k.
Do I have to follow the schedule exactly?
Treat intervals as upper limits. Severe conditions — short trips, stop-and-go traffic, towing, temperature extremes — mean servicing more often. Your owner's manual is the authoritative schedule for your model.
What if I bought a used car with no service records?
Assume overdue items haven't been done: have fluids, filters, brakes and belts inspected, then start a fresh log from that baseline. See how to check a car's service history.