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Beach Rinse-Down & Salt Removal Checklist

Most car owners make this harder than it needs to be. Here's the straightforward approach that actually works—no fluff, no upselling.

Driving on the sand is a blast, but salt and chassis rust are absolute killers for Aussie 4x4s. This checklist covers exactly how to flush out the brine and sand before it eats your pride and joy.

B"W
Barry "Bazza" Williams Product Reviewer
| Updated: 2 March 2026
Beach Rinse-Down & Salt Removal Checklist

Aussie Conditions

Living near the coast? Salt air corrodes metal and degrades rubber seals. A fortnightly wash underneath is essential, not optional.
Quick Summary

Look, I've seen too many tidy Hiluxes and Cruisers end up with 'beach cancer' because the owners just gave them a quick squirt at the local servo. After 15 years in the trade, I reckon the aftercare is more important than the drive itself. This is for the weekend warriors who've just come back from Fraser or Robe and want to make sure the salt hasn't found a permanent home in their chassis rails.

01

Don't let the salt settle

Right, so you've had a cracker of a weekend on the sand. Now comes the boring bit that actually saves you thousands in resale. I learned this the hard way when I bought a 'clean' Patrol that turned out to have half of Rainbow Beach hiding inside the rear cross-member. Truth be told, if you leave salt on there for more than 48 hours in this March heat, you're asking for trouble.
02

The Essential Gear

What You'll Need

0/9
High-pressure washer — Electric is fine, but petrol has the grunt for caked-on sand.
Salt-neutralising solution — I swear by Salt-Away or Bowden's Own Salt Sifter. Plain water isn't enough.
Chassis flushing tool — Those little wheeled sprayers that go under the car are worth their weight in gold.
Long-reach nozzle — For getting deep into the wheel arches.
Snow foam cannon — Makes life easier and gets the salt-remover everywhere.
Dedicated wheel brush — Not the one you use on your paint!
Microfibre wash mitt — A cheap one is fine for the lower sills.
Air compressor or blower — To blow water out of mirrors and trim joinery.
Flood light — If you're doing this in the arvo, you need to see inside the dark chassis holes.
03

Pre-Start Checklist

What You'll Need

0/5
Engine is cool — Don't spray cold water on a hot turbo or manifold unless you want things to crack.
Windows up & sunroof closed — Sounds obvious, but I've seen it happen more than once.
Remove recovery gear — Take off your snatch straps and shackles so you can clean behind them.
Check for 'hitchhikers' — Look for clumps of seaweed or dried mud stuck to the exhaust.
Drain plugs checked — Ensure your floor bungs are in if you're spraying near the door seals.
04

The Step-by-Step Flush

Tap each step to mark complete
01

The Dry Knock-Off

Before getting things wet, use a broom or air compressor to knock off loose, dry sand from the door sills and bumpers. It stops it turning into mud.

02

Chassis Internal Flush

Stick your hose or flushing tool into the access holes of the chassis rails. Run it until the water coming out the other end is 100% clear.

03

Salt Neutraliser Application

Chuck your salt-remover in the foam cannon and coat the entire underbody, wheel arches, and suspension components. Let it dwell for 5-10 mins (don't let it dry).

04

High-Pressure Underbody Rinse

Work from the middle of the car outwards. Pay massive attention to the top of the fuel tank and the spare tyre carrier, sand loves hiding there.

05

The Body Wash

Wash the paintwork as normal using the two-bucket method. Use a wax-safe soap because the salt has likely already stripped some of your protection.

06

Engine Bay Wipe-Down

Actually, wait, don't go nuts with the pressure washer here. Just a damp cloth to wipe salt spray off the battery terminals and intake box.

05

Final Inspection

What You'll Need

0/4
Brake rotors — Check for grit caught between the pad and the rotor. Give them a good rinse.
Radiator fins — Ensure no sand or salt crust is blocking airflow (essential for the Aussie heat).
Door jambs — Wipe them down, salt spray gets everywhere even with the doors shut.
Under-seat check — If you had the windows down, sand will be under the rails. Vacuum it now or it'll grind the tracks.

A note on 'Auto' car washes

Honestly, I wouldn't bother with those 'Underbody Wash' options at the servo. They usually just spray recycled, salty water back onto your car. Do it at home with fresh tap water or it's not worth doing at all.

Watch Out

NEVER grease or oil a chassis that still has sand on it. You'll just create a 'grinding paste' that'll eat your bushings. Also, be careful with high pressure near electrical connectors and wheel bearings, you want to wash the salt off, not drive it deeper into the seals.

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