How to dry your car without swirls or water spots

After a careful wash, it is easy to undo the work while drying. Rubbing a thin or dirty towel across the paint is a common cause of fine scratches, and leaving the car to dry on its own leaves water spots. This guide covers the towel, the technique and the timing.

How to dry a car in 5 steps

1. Start as soon as you finish rinsing, before the water has time to dry on the panel.
2. Lay a clean, dense drying towel flat on the panel and pull it slowly towards you. Do not rub.
3. Work from the top down: roof and glass, then bonnet and boot, then the sides.
4. Flip to the dry face as the towel loads up, and blot around badges, mirrors and trims.
5. Finish any last streaks with a separate soft cloth, then dry the door shuts and wheels with cloths kept for those jobs.

Why drying matters

Two things go wrong at the drying stage. The first is scratching. A thin towel has to be dragged over the paint again and again, and any grit the wash missed is dragged with it. The second is water spots. Tap water carries dissolved minerals, and when a droplet evaporates the minerals stay behind as a pale ring.

A good towel and a quick start solve both. The fewer passes you make and the sooner you make them, the better the finish.

Choose a proper drying towel

A dense twisted loop towel holds far more water than a chamois and needs fewer passes. The Twisted Loop Drying Towel is 1400 GSM on both faces with a soft silk banded edge that keeps the border away from the paint.

Pick a size to match the car:

A towel that is too small soaks through halfway round and starts to smear. If you are between sizes, go up one.

Use a drying aid

A drying aid lubricates the towel so it glides and does not drag. Mist each panel lightly before you dry it. A drying aid also adds gloss and helps water bead afterwards.

Technique

1. Start straight away. Begin drying as soon as you finish rinsing, before water spots form.
2. Lay flat and pull. Open the towel out, lay it flat on the panel and pull it slowly towards you by two corners. One slow pass lifts the water without rubbing.
3. Work top down, the same order as washing. Roof and glass first, then bonnet and boot, then the sides and bumpers.
4. Flip the towel to the dry face as it loads up. On vertical panels, fold it and pat dry.
5. Blot around badges, mirrors and trims, where rubbing only catches the towel.
6. Chase the drips. Open and close the doors, boot and fuel flap, then dry the shuts and catch the water that runs out of mirrors and handles.
7. Finish with a separate edgeless buffing cloth for any last streaks, and a waffle weave glass cloth for the windows.

Dry the wheels last, with a cloth kept for wheels. Your paint towel should never touch them.

Water spots and hard water

Water spots are minerals left behind when tap water evaporates. The harder your water, the faster they form and the more stubborn they are. Three habits keep them away.

• Wash in the shade or in the cool of the evening, so water does not dry on the panel before you reach it. The car wash weather checker shows whether conditions suit a wash today.
• Rinse and dry in sections on a warm day. Do not let the whole car sit wet while you put the kit away.
• Know your water. The UK water hardness checker shows how hard the water is where you live.

For what the spots are made of and how to deal with ones that have already formed, read water spots and hard water.

Look after your towels

A drying towel is only as gentle as it is clean. Wash microfibre at 40°C with a microfibre detergent, separately from other laundry so it does not pick up lint. Skip fabric softener, which clogs the fibres and stops them absorbing. Air dry or tumble on low heat.

If a towel falls on the ground, do not carry on with it. Put it in the wash and pick up a clean one. Store dry towels in a lidded box or bag so they do not gather dust between washes.

Common mistakes

• Rubbing in circles. It drags any grit left on the panel across the paint.
• Using a bath towel or an old T shirt. Cotton is far less absorbent and far less soft than dense microfibre.
• Waiting. Every minute the car sits wet in the sun is a minute for spots to form.
• One towel for everything. Paint, glass, door shuts and wheels each get their own.
• Fabric softener. It coats the fibres and ruins the towel.

Drying is the last step of the wash. If you want the steps before it, start with the snow foam guide and the two bucket wash. For a kit list built around your own car, use the car wash product finder.

Quick answers

Kit for this job

• Twisted Loop Drying Towel 1400 GSM
• Laser Edgeless Buffing Cloths
• Waffle Weave Glass Cloth
• Wheel and Dirty Jobs Cloths 3 Pack

More from the Journal

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• How to do a two bucket wash without adding swirl marks
• Snow foam explained: how to use a foam cannon properly
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