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Keeping Your Rig Clean as the Seasons Shift

Red dust, creek crossings, and corrugated roads don't just test your 4WD—they test your cleaning game. Most people get it wrong.

Autumn in Oz is a killer for your paint. Between the leftover summer heat, coastal salt, and that bloody red dust, your car needs some serious love before winter hits.

MT
Mick Thompson Senior Detailing Editor
| Updated: 17 March 2026
What You'll Learn
Keeping Your Rig Clean as the Seasons Shift

Aussie Conditions

Aussie red dust is iron-rich and bonds to paint. A regular rinse won't cut it—you need proper pre-wash and pH-neutral soap to avoid scratching.
Quick Summary

Look, we've just come off a brutal summer and March is usually when everything starts to catch up with your paintwork. This is for the blokes and ladies who actually use their cars, whether you're hitting the beach or just back from a dusty run out west. I'm going to give you the quick version of what you actually need to do to stop your clear coat from peeling off like a bad sunburn.

01

The Autumn Reality Check

Right, so summer is winding down but the sun is still biting. If you've been living it up at the beach or flicking red dirt up the wheel arches, March is the time to get stuck in. I've seen too many tidy 4WDs end up with 'outback pinstripes' and faded bonnets because people reckon the rain will just wash it off. Spoilers: it won't. You need to get that grit and salt off now before the cooler weather bakes it in for good.

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The Red Dust Reality

If you've been out past the black stump, that red dust is basically sandpaper. Whatever you do, don't just grab a sponge and start scrubbing. I made this mistake myself on a black Commodore years ago, looked like I'd washed it with a brick. Use a proper snow foam or a heavy pre-wash first. You want to float that grit off the surface before you even think about touching the paint with a mitt.

The Coastal Killer

Living near the coast? That salt spray is a silent killer for your undercarriage. After a summer of beach runs, I reckon you should spend at least 10 minutes just hosing out the chassis rails. Use something like Salt-Away or even just a good shot of CT18. Truth be told, most people forget the roof too, salt sits up there and eats the seals around your windscreen while you're not looking.

UV Protection is Non-Negotiable

Our sun is cooked, simple as that. Even in March, the UV will wreck your plastics. Don't bother with those greasy, shiny dressings from the servo that just attract more dust. I'm a big fan of 303 Aerospace Protectant or Bowden's Own Vinyl Care. They give a nice matte finish and actually have UV blockers. Your dash will thank you when it hasn't cracked in two years' time.

Bat Droppings and Bug Guts

After a dusty Nullarbor crossing or even just parking under a gum tree, you'll get hit with wildlife 'gifts'. Bat poo in particular is like acid. A customer once brought in a late-model Prado where the bat juice had eaten straight through the clear coat in 48 hours. Keep a bottle of quick detailer and a clean microfibre in the glovebox. See it? Wipe it. Immediately. No dramas.
02

The Autumn Survival Kit

What You'll Need

0/5
A decent pH-neutral car wash — Meguiar's Gold Class is a solid, safe bet.
Quality clay bar or mitt — To get all that embedded grit out of the paint.
Synthetic Sealant or Ceramic Spray — Lasts way longer than wax in the Aussie heat.
Soft wheel brush — To get the brake dust off before it pits the rims.
Microfibre drying towel — Stop using old bath towels, you're killing your paint!

Watch Out

Never wash your car in the direct midday sun. I don't care how much of a hurry you're in. The water dries instantly, leaves nasty spots, and the chemicals can actually etch into the warm paint. Do it in the early morning or late arvo when the panels are cool to the touch.
03

Common Questions

Can I just use dish soap to get the red mud off?
Look, you can, but it'll strip every bit of wax and protection off the car. It dries out your rubber seals too. Spend the twenty bucks on a proper car soap, it's cheaper than a respray.
How often should I protect the paint?
In our conditions, I'd say every 3-4 months. If you're using a ceramic spray like Gtechniq C2, it's dead easy. Just spray on and wipe off while you're drying the car. Done.

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