The Ultimate Used Car Maintenance Checklist (By Mileage)

Buying a used car can save money. But keeping it running well takes some work. You need to stay on top of maintenance. And the best way to do that? Follow a checklist based on mileage.

Here’s a simple guide to help you know what to check and when. It covers most Calgary used car on the road today. If your car’s manual says something different, always go with that first.

Every 5,000 to 7,500 Miles

These are the basics. You’ll do these things often, and they’re key to keeping your car in shape.

Oil and Filter Change

This keeps your engine smooth. Dirty oil wears it out faster. Most shops do this quick. Ask for the oil that’s right for your engine.

Tire Rotation

Front and back tires wear different. Rotating them helps them last longer. Ask to have them checked for air and tread too.

Check Fluid Levels

Coolant, brake fluid, power steering, and windshield washer fluid. Make sure none of these are low. Top off if needed.

Inspect Belts and Hoses

Cracks, wear, or leaks are bad signs. A broken belt can leave you stuck on the road.

Every 15,000 Miles

Now you go a little deeper.

Replace Air Filter

Your engine needs clean air to run well. A dirty filter can hurt gas mileage and power.

Inspect Brake System

Pads, rotors, and fluid should all get a look. If they squeak or take longer to stop, don’t wait.

Clean Battery Terminals

Rust and grime can build up. Clean them to keep the car starting strong.

Every 30,000 Miles

This is a good point to check a lot more parts.

Change Transmission Fluid (if needed)

Not all cars need this now, but some do. Check the manual or ask a trusted shop.

Replace Fuel Filter

A clogged one can cause engine trouble or make it run rough.

Check HVAC System

Heating and air should be working right. Cabin air filters may need changing too.

Inspect Suspension

Look at shocks, struts, and ball joints. Bumpy rides or tire wear might be signs of trouble.

Every 60,000 Miles

Your car has been with you for a while now. Time to give it some love.

Replace Spark Plugs

These help your car start and run right. Worn plugs can cause rough idling or poor gas mileage.

Check Timing Belt or Chain

Not all cars have timing belts. But if yours does, change it now. If it snaps, the engine can get wrecked.

Flush Brake Fluid

Over time, it picks up moisture. That can lead to rust or brake fade. A flush keeps it clean.

Every 90,000 Miles

You’re close to the 100k mark. Your car’s still got life, but you need to be on it.

Change Power Steering Fluid

It helps you steer smooth and easy. Dirty fluid can wear down the system.

Inspect Exhaust System

Look for leaks, rust, or loud noises. You don’t want fumes getting in the car.

Battery Check

Most batteries last 3–5 years. Even if it starts fine, have it tested.

Over 100,000 Miles

Lots of used cars go past this now. With care, yours can too.

Replace Timing Belt (if not done)

If it’s still original, don’t push your luck. Replace it now.

Check Engine Mounts

If the car jerks or you feel strong shakes, mounts may be loose or broken.

Inspect Wheel Bearings

They can wear out over time. Signs include humming or grinding sounds from the wheels.

Ongoing Monthly Checks

Even if mileage hasn’t hit the next mark, do these once a month:

• Check oil level
  

• Look at tire pressure
  

• Inspect lights (headlights, brake lights, turn signals)
  

• Listen for new sounds (clicks, squeals, hums)

Why This Checklist Matters

Used cars don’t come with a clean slate when you buy them from a trusted used car dealership in Calgary. You don’t always know how the last owner treated it. Sticking to a checklist keeps small problems from turning big.

Repairs cost more than routine checks. And keeping up with service can help your car last years longer.

Also, if you ever want to sell it later, a well-kept car gets more money. Showing a buyer your records proves you took care of it.

Tips to Stay on Track

• Keep a notebook or app to track dates and miles
  

• Save all your receipts from service visits
  

• Ask your mechanic what’s coming up next
  

• If something feels off, don’t wait — get it checked
  
  

Final Thoughts

A used car is a smart buy if you treat it right. Don’t skip service just because it’s not new. Follow the checklist, and you’ll get more miles and fewer headaches.

It’s not about doing it perfect. Just keep up, stay alert, and take care of things when they come up.