
You don’t need to be a mechanic to take great care of your car.
In fact, there are plenty of simple maintenance checks you can do at home that help keep your vehicle running smoothly, extend its lifespan, and even save you money on unnecessary visits to the workshop.
Here are some quick and easy jobs you can do yourself – no special tools or advanced car knowledge required.
Check and Top Up Your Engine Oil
Your oil keeps your engine healthy by reducing friction and preventing overheating.
How to do it:
- Park on level ground and let the car cool for 5–10 minutes.
- Pull out the dipstick, wipe it clean, and check the oil level.
- The oil should sit on or near the MAX line when cold.
- If it’s between low and high, top up using the correct oil grade (e.g., 5W-30).
👉🏼 Top Tip: Use online tools (like Supercheap Auto NZ’s oil finder) to check which oil grade your car needs.
Check and Top Up Other Fluids
Your car relies on more than just oil. Most fluids are easy to check and top up:
- Coolant – Keeps your engine from overheating.
- Brake fluid – Crucial for safe braking response.
- Windscreen washer fluid – Easy to refill and essential for visibility.
- Power steering fluid (in older vehicles).
👉🏼 Top Tip: Always top up coolant when the engine is cold to avoid burns or pressure release.
Check and Adjust Your Tyre Pressure
Correct tyre pressure improves fuel efficiency, handling, and tyre lifespan.
How to do it:
- Use the free air pumps at most petrol stations.
- Check the recommended PSI on the driver’s door frame or owner’s manual.
- Inflate or deflate as needed.
What PSI should you aim for?
Most passenger cars sit comfortably between 35–40 PSI, but always follow your vehicle’s specific recommendation for the safest and most efficient pressure.
👉🏼 Top Tip: Check tyre pressure every 2–4 weeks, especially before long trips.
Inspect Your Tyre Tread
Worn tyres can be dangerous in wet conditions.
Quick test:
- Insert a 20c coin into the tread.
- If you can see all of the number “20,” your tyres are worn and should be replaced.
NZ’s legal minimum tread is 1.5mm, but more tread = more grip.
Replace Your Wiper Blades
If your wipers smear, skip, or squeak, it’s time for new ones.
How to do it:
- Most blades clip out easily using a small release tab.
- Clip in the new ones until they click into place.
👉🏼 Top Tip: Replace wipers every 6–12 months to maintain clear visibility in rain.
Change Your Air Filter
Your engine air filter stops dirt and dust from entering the engine.
- Usually located in a simple plastic box with clips or screws.
- Swap in a new filter (available at auto parts stores).
- No tools needed for many vehicles.
A clean air filter improves engine efficiency and fuel economy.
Check Your Lights
Walk around your car and check:
- Headlights
- Brake lights
- Indicators
- Reverse lights
Most bulbs are inexpensive and easy to replace with basic tools.
Keep Your Battery Healthy
You can:
- Check for corrosion on battery terminals.
- Tighten loose clamps.
- Clean terminals with a baking soda + water mixture.
If your battery is slow to crank or over 4 years old, get a free testing at a Supercheap Auto or Repco.
Bottom Line
You don’t need a mechanic for every little thing.
Simple DIY checks like topping up oil, adjusting tyre pressure, replacing wipers, and checking fluids help keep your car in great shape, save money, and reduce the risk of unexpected breakdowns.
👉🏼 A few minutes of DIY maintenance can keep your car safer, smoother, and cheaper to run.