Backyard Mechanic Tips: How to Check Your Car’s Fluids

by | Feb 28, 2025 | DIY Do It Yourself, Garages Car Sheds, How to, Machinery, Motoring, Motorsport, Tips and Advice | 0 comments

Engine Oil: The Lifeblood of Your Car

Engine oil keeps everything running smoothly and prevents the engine from seizing up like a rusty gate.

How to Check It:

  • Make sure the engine’s cool, or at least give it 10 minutes to settle. Checking hot oil is a rookie mistake.
  • Pop the bonnet and find the dipstick. It usually has a bright handle—yellow or orange.
  • Pull it out, wipe it clean, and stick it back in. Then pull it out again to check the level.
  • The oil should be between the “Min” and “Max” marks.
  • If it’s dark and dirty, it’s time for an oil change. A golden brown is what you’re after.

Handy Tip:

Ignoring dark, dirty oil can lead to expensive engine repairs. Check the oil every month to keep things running smoothly.

What You’ll Need:

  • Engine oil (make sure it’s the right type for your car)
  • Clean rag or paper towel

Where to Buy:

Engine Oil Products – Make sure to pick the right type for your make and model.

2. Coolant: Keeping Your Engine Cool as a Cucumber

Coolant does exactly what it says—it keeps your engine from overheating or freezing. It’s a lifesaver during Aussie summers.

How to Check It:

  • Never check the coolant when the engine is hot. You don’t want a face full of boiling steam.
  • Look for the coolant reservoir—it’s usually transparent with “Min” and “Max” markings.
  • If it’s low, top it up with the right type of coolant. If you’re unsure, check the car’s manual.
  • The colour should be green or orange. If it looks rusty or murky, it’s time for a flush.

Handy Tip:

Running out of coolant can leave you stranded with an overheated engine. Check the coolant every few weeks, especially before a long road trip, to avoid unexpected breakdowns.

What You’ll Need:

  • Coolant (check your manual for the right type)
    Funnel (to avoid spills)

Where to Buy:

Coolant Products – Get the right coolant to keep your engine from boiling over.

3. Brake Fluid: The Safety Net

Brake fluid is one of those things that often gets overlooked—until it’s too late. If your brakes feel spongy or unresponsive, this is the first thing to check

How to Check It:

  • Locate the brake fluid reservoir, usually on the driver’s side near the firewall.
  • Make sure the fluid is between the “Min” and “Max” marks.
  • If it’s low, you might have a leak or your brake pads are wearing thin.
  • The colour should be light yellow. If it’s brown or murky, replace it.

Handy Tip:

Using the wrong brake fluid or letting it get too low can make your brakes unreliable. Always use the recommended type and check it regularly to ensure safe braking.

What You’ll Need:

  • Brake fluid (make sure it matches your car’s requirements)
  • Clean rag

Where to Buy:

Brake Fluids – For safe and reliable braking power.

car hood

4. Transmission Fluid: Smooth Shifting All the Way

Nothing ruins a drive like rough gear changes. If you’re noticing delayed or clunky shifts, it’s time to check the transmission fluid.

How to Check It:

  • Depending on your car, you might need to check this while the engine’s running. Check the manual to be sure.
  • Find the transmission dipstick, usually towards the back of the engine bay.
  • Wipe it clean, dip it back in, and pull it out again to check the level.
  • The fluid should be a bright pinkish-red. If it’s brown or smells burnt, you’re in for trouble.

Handy Tip:

Burnt or dirty transmission fluid can lead to rough gear changes and expensive repairs. Check it every month to keep your transmission healthy.

What You’ll Need:

  • Transmission fluid (double-check the type in your manual)
  • Clean rag

Where to Buy:

Transmission Fluids – Keep your shifts smooth and your transmission healthy.

5. Power Steering Fluid: Easy Steering, Every Time

If your steering’s feeling heavy or making weird noises, low power steering fluid could be the culprit.

How to Check It:

  • Look for the reservoir labelled “Power Steering.” It’s usually easy to spot.
  • Check the level and top up if needed.
  • Should be a clear amber or reddish colour. If it’s dark or dirty, get it flushed.

Handy Tip:

Low or dirty power steering fluid can lead to noisy, difficult steering. Checking and topping it up regularly keeps your steering smooth and easy.

What You’ll Need:

  • Power steering fluid (check your car’s manual for the right type)
    Funnel (to avoid spills)

Where to Buy:

Power Steering Fluids – Smooth steering for easier turns.

Shed Wisdom: A Few Final Tips

Checking your fluids isn’t rocket science, but it’s one of the best ways to keep your car running like a dream. Make it a habit to check them every month or before any big road trips. And remember, it’s always better to catch problems early than wait until you’re stranded on the side of the road.

Where to Get Everything You Need:

You can find all these fluids and more at SuperSpares. Whether you’re a seasoned grease monkey or just getting started, they’ve got everything you need to keep your car in top shape.
Until next time, keep the beers cold, the hands greasy, and the cars running smooth. Cheers, mate!