Cigarette smell is the hardest odour to remove from a car, and the most damaging to resale value. It is stubborn because it is not one smell in one place — tar and nicotine residue coats every surface in the cabin, including the parts you cannot reach.

Why air fresheners fail

A fragrance adds a smell on top of the existing one. For a day the car smells of both; then the fragrance fades and the smoke is still there, because the source is still there. Removing the source is the only approach that works.

Work through every surface

1. Strip the car out. Mats, boot liner, anything loose. Empty the ashtray and clean it, or replace it.
2. Vacuum everything, including under the seats, the seat rails and the boot.
3. Wash the hard surfaces. Dashboard, doors, centre console, steering wheel, gear lever, and the underside of every surface you would normally skip. Residue collects on horizontal faces you never look at.
4. Do the headlining. This is the step everyone skips and it holds an enormous amount of residue. Use a barely damp cloth and light pressure — soaking a headlining detaches the adhesive.
5. Clean the glass, inside. Nicotine film on the inside of the windows is often visible as a yellow tint on the cloth. Expect to go through several cloths.
6. Deep clean the fabric. Seats and carpets hold the most. Use an upholstery cleaner and extract or blot out as much moisture as possible.
7. Leather needs a leather cleaner rather than an all purpose cleaner, then a conditioner.

The ventilation system

Smoke gets pulled into the air conditioning and sits in the ducting and on the evaporator. If you clean the whole interior and the smell returns when the fan comes on, that is where it is.

• Replace the pollen filter. It is cheap, it is usually behind the glovebox, and it is saturated.
• Run the ventilation on full with fresh air, windows open, for a good while.
• Consider a dedicated air conditioning cleaner fed into the intake.

Dry it out completely

Damp fabric holds smell and grows its own. After a deep clean, dry the car thoroughly — windows open in dry weather, or the heater running with fresh air selected. Do not shut it up wet.

Only then, a fragrance

Once the source is gone, a fragrance is doing what it should — making a clean car smell pleasant rather than covering something up. Our car fragrances come as a spray for the cabin and a hanging freshener for ongoing scent.

Realistic expectations

A car smoked in for years may need two or three full passes, and the smell can return in hot weather as residue you missed warms up and off-gasses again. If it comes back in the heat, you have missed a surface — usually the headlining, the seat belts or the ventilation.

Before you start

Always read the label on the product you are using and follow the instructions on it for dilution, application and safety. Work in the shade on cool paint, and test anything new on a small, hidden area first — particularly on trim, wraps and finishes you are not familiar with.

Not sure which product fits the job? SWAG Fast Lane asks three quick questions and puts the right kit together for you.

Anyone who carries a dog knows that a vacuum picks up perhaps half of what is there. Pet hair does not simply sit on upholstery — it works into the weave and hooks into the pile, and suction alone cannot pull it back out.

Why a vacuum is not enough

Hair is barbed along its length. As it moves against fabric it burrows in, and the same barbs stop it coming straight out. You have to disturb it first — break the grip, lift it to the surface, then vacuum it away.

The order that works

1. Vacuum first to take away the loose top layer, so you are not fighting it later.
2. Agitate. A rubber brush, a pumice-type block or a rubber glove dragged across the fabric will roll hair into clumps you can pick up. Work in one direction, against the pile.
3. Vacuum again. Most of the hair is now sitting on the surface.
4. Repeat on the worst areas. Two or three passes on the seat bases is normal.
5. Damp cloth for the last of it. Wipe a slightly damp microfibre over the fabric — the remaining hairs cling to it.
6. Vacuum a final time.

The tools that actually help

• A rubber pet brush. The cheapest and most effective item on this list.
• A washing-up glove. Genuinely works, especially on tight areas around seat belts.
• A stiff-bristled brush for carpet and boot liners.
• A narrow vacuum nozzle for seat rails and the gap between base and backrest, where hair collects in ropes.

Do not forget the boot

If the dog travels in the boot, the carpet, the sides and the underside of the parcel shelf all collect hair. Lift the boot floor and do underneath — that is where it drifts and where the smell starts.

Smell is a separate job

Removing hair does not remove odour. Dog smell comes from oils and moisture in the fabric, and masking it with a fragrance only works until the car warms up.

Clean the fabric properly with an upholstery cleaner, extract or blot as much moisture back out as you can, and dry the car thoroughly with the windows open. Only then is a fragrance doing what you want, rather than sitting on top of the problem. Our upholstery range covers the cleaning stage.

Making it easier next time

• A fitted boot liner or seat cover takes ten seconds to fit and saves the whole job.
• A blanket the dog actually likes will hold most of the hair — and it goes in the washing machine.
• Brush the dog before a trip, not after.
• Deal with it regularly. Hair that has been ground in for six months is far harder than a weekly pass.

Before you start

Always read the label on the product you are using and follow the instructions on it for dilution, application and safety. Work in the shade on cool paint, and test anything new on a small, hidden area first — particularly on trim, wraps and finishes you are not familiar with.

Not sure which product fits the job? SWAG Fast Lane asks three quick questions and puts the right kit together for you.

Seats and carpets get the attention. Vents, screens and switchgear are what people actually look at and touch, and they are the details that make an interior feel cared for or neglected.

Air vents

Vents collect dust in the fins where no cloth reaches, and blow it back at you every time the fan runs.

1. Blow the loose dust out first — a can of air, a blower, or the reverse setting on a vacuum.
2. Run a soft detailing brush along each fin. A dry brush lifts more than a damp cloth pushes.
3. Hold a vacuum nozzle next to the brush so the dust goes into the vacuum rather than onto the dashboard.
4. For the film that builds on the outer fins, mist a light interior cleaner onto the brush and work gently.
5. Dry with a cloth wrapped over a thin tool.

Do not spray cleaner directly into a vent. It runs down inside the ducting and can end up on the heater matrix or in the blower.

Screens and instrument displays

Modern touchscreens have anti-glare and oleophobic coatings that are easily damaged. Treat them like a phone screen, not like a window.

• Never use glass cleaner, alcohol, or an all purpose cleaner on a screen. They strip the coating permanently.
• Use a clean, dry, plush microfibre first. Most fingerprints come off dry.
• For anything stubborn, very slightly dampen the cloth with water or a dedicated screen-safe product.
• Spray the cloth, never the screen. Liquid running into the bezel is how displays fail.
• Wipe in one direction, then buff dry.
• Turn the screen off first — you can see the marks far better on a dark display.

Sticky buttons and worn switchgear

That soft-touch tackiness on older interiors is the rubberised coating breaking down, made worse by skin oils, sun cream and hand sanitiser. Once it has gone properly sticky, the coating is failing and cleaning only slows it.

1. Start with a barely damp microfibre and light pressure.
2. Step up to a diluted interior cleaner on the cloth if needed — never neat, never sprayed on directly.
3. Use a soft brush around the edges of buttons and in the lettering.
4. Dry immediately. Do not leave moisture around electrical switches.
5. Finish with a matte interior dressing to protect what coating is left.

Avoid glossy dressings here. They make buttons slippery, they shine into your eyes, and they accelerate the off-gassing that films up your windscreen.

The tools that make it easy

• Two or three soft detailing brushes of different sizes.
• A plush microfibre reserved for screens only.
• A general interior microfibre for plastics.
• A vacuum with a narrow nozzle.

Our interior range includes a matte dressing that cleans and protects in one pass, which is the practical choice for switchgear and vents.

Before you start

Always read the label on the product you are using and follow the instructions on it for dilution, application and safety. Work in the shade on cool paint, and test anything new on a small, hidden area first — particularly on trim, wraps and finishes you are not familiar with.

Not sure which product fits the job? SWAG Fast Lane asks three quick questions and puts the right kit together for you.

A glass sealant makes water bead and roll off the screen instead of sheeting across it. On a wet motorway at night, the difference in visibility is one of the most noticeable improvements available in car care.

How it works

The treatment leaves a very thin hydrophobic layer bonded to the glass. Water cannot spread across it, so it pulls into beads. Above roughly 40 mph those beads are carried off the screen by airflow alone, and you can often drive without wipers at all.

What it genuinely does

• Clears water faster in heavy rain, especially at speed.
• Reduces the halo and glare from oncoming headlights on a wet night.
• Makes ice, frost and bug splatter easier to remove afterwards.
• Reduces how hard your wipers have to work, which extends blade life.

What it does not do

• It will not fix a scratched or pitted screen. Scratches scatter light regardless of coating.
• It will not compensate for worn wipers — and on a treated screen, bad blades judder more, not less.
• It does not last forever. Wipers abrade it, and the treated area under the wiper sweep wears first.
• It will not help much in stop-start town driving, where there is no airflow to move the beads.

Preparation decides the result

This is where most applications fail. The treatment bonds to glass, not to the film sitting on the glass. Applied over traffic film or old wiper residue, it will bond patchily and wear off in weeks.

1. Wash the glass thoroughly.
2. Decontaminate it — if the screen feels rough through a plastic bag, clay it. Glass picks up bonded contamination just as paint does.
3. Clean with a dedicated glass cleaner and dry completely.
4. Apply the sealant thinly and evenly as the label directs.
5. Buff off any residue properly. Leftover product is what causes the smearing people blame on the coating.

Do not treat the inside

These products are for the exterior only. On the inside they cause haze and glare — exactly what you were trying to avoid. The inside just wants to be clean.

Wipers on treated glass

Running wipers on a dry, treated screen is the fastest way to wear the coating off and to make it judder. Use plenty of screenwash and let the water do the work. Replace blades before they start smearing, not after.

Where it fits in a routine

Glass sealant goes on after decontamination and glass cleaning, and before you apply protection to the paint. Reapply when you notice the beading has gone flat, typically a few months on a daily driver. See our glass range for the cleaners and protection that go together here.

Before you start

Always read the label on the product you are using and follow the instructions on it for dilution, application and safety. Work in the shade on cool paint, and test anything new on a small, hidden area first — particularly on trim, wraps and finishes you are not familiar with.

Not sure which product fits the job? SWAG Fast Lane asks three quick questions and puts the right kit together for you.

The windscreen looks fine on the way to work and turns into a glare-filled mess the moment headlights come the other way. This is one of the most common complaints in car care and one of the easiest to fix once you know where the film is.

It is usually the inside

Interior plastics, vinyl and dashboard dressings off-gas over time, particularly when the car gets hot. That vapour condenses on the coolest surface in the cabin — the inside of the windscreen — and leaves an oily film.

In daylight you look through it without noticing. At night, oncoming headlights hit the film and scatter, producing the starburst and haze that makes driving genuinely unpleasant.

Why your glass cleaner is not fixing it

• Wrong cloth. A cloth that has ever seen a dressing, wax or fabric softener spreads oil rather than removing it.
• Too much product. Flooding the glass leaves residue behind. Less product and more buffing works better.
• One cloth for everything. You need two: one damp to clean, one dry to buff.
• Working in sun. The cleaner evaporates before you can buff it and dries as streaks.

The method that works

1. Two clean glass microfibres, used for nothing else. No softener, ever.
2. Spray the cleaner onto the cloth, not the glass — overspray onto the dashboard is what starts the cycle again.
3. Clean in straight overlapping passes, horizontally on the inside.
4. Buff immediately with the dry cloth, vertically on the outside.
5. Using different directions on each side tells you instantly which side a remaining streak is on.
6. Do the top edge properly. Most people cannot reach it and that is exactly where the film builds.

A dedicated glass cleaner is worth using rather than an all purpose cleaner — APC leaves a residue on glass that causes the very problem you are trying to remove.

Getting to the awkward parts

The bottom few inches of the screen, where it meets the dashboard, is nearly impossible to reach with a flat hand. A long-handled glass tool, or a cloth wrapped over a plastic scraper, gets in there. That strip is where film is thickest, because it is closest to the vents.

Reduce the source

• Avoid high-gloss dashboard dressings. A matte interior dressing off-gasses far less and does not shine into your eyes off the screen.
• Ventilate the car on hot days rather than letting it bake sealed shut.
• Clean the inside of the glass regularly — monthly is not excessive on a car that is used daily.

If it is the outside

Outside smearing is normally traffic film or wiper rubber deposits. A proper wash of the glass, then a decontamination if it still feels rough, then glass cleaner. Replace wiper blades that judder or smear — no product fixes a torn blade.

Before you start

Always read the label on the product you are using and follow the instructions on it for dilution, application and safety. Work in the shade on cool paint, and test anything new on a small, hidden area first — particularly on trim, wraps and finishes you are not familiar with.

Not sure which product fits the job? SWAG Fast Lane asks three quick questions and puts the right kit together for you.

Wheel cleaner is the product category where using the wrong thing does visible, permanent damage fastest. Alloys are lacquered, painted, polished, anodised or chromed, and they do not all tolerate the same chemistry.

Know your wheel first

• Lacquered alloys — the overwhelming majority of modern factory wheels. A clear coat over paint. Reasonably tolerant, but the lacquer can be dulled.
• Polished or diamond-cut — bare or thinly lacquered machined metal. Vulnerable to acids, which will stain and cloud them permanently.
• Anodised — often on aftermarket wheels. Acids will discolour the anodising.
• Painted, matte or satin — no gloss lacquer to protect the finish. Keep to gentle products.

If you do not know which you have, treat them as delicate until proven otherwise.

The four types

pH neutral. The routine choice. Safe on every wheel type and on wheel sealants and coatings. Handles regular brake dust if you clean often. Start here.

Alkaline. Better on oily road film and general grime around the arches. Fine on lacquered wheels, less appropriate for repeated use on delicate finishes, and hard on protection.

Acidic. The heavy option for badly baked-on deposits. Effective and unforgiving — not for polished, anodised or diamond-cut wheels, not in the sun, never left to dry.

Iron remover. Chemically targets embedded iron rather than attacking by pH. Safe on practically all finishes, safe on coatings, and the right answer for the speckled, still-grey look after washing.

What most people actually need

For a car that is cleaned regularly: a pH neutral wheel cleaner every wash, and an iron remover every few months. That combination handles the great majority of wheels without ever risking the finish.

The heavy acidic products earn their place on neglected wheels, on work vehicles, or as a one-off recovery job — not as a weekly routine.

Technique

1. Cool wheels only. Never straight after a drive.
2. Rinse first to remove loose grit.
3. Spray, dwell as the label says, and do not let it dry.
4. Agitate with a soft wheel brush, a soft face brush for the barrel, a detailing brush for bolt recesses.
5. Rinse thoroughly — including the inner barrel, where residue hides.
6. Dry, then protect.

Protecting wheels is the real shortcut

A sealed wheel does not let brake dust key into the lacquer. Cleaning goes from a fifteen-minute scrubbing job to a rinse and a wipe, and you stop needing aggressive products at all. Our wheel range includes a hydrophobic wheel protectant for exactly this.

Two things to keep separate

Wheel brushes, mitts and buckets must never touch your paint. Brake dust embedded in a mitt is abrasive, and one careless swipe puts scratches into a door that took an hour to polish out.

Before you start

Always read the label on the product you are using and follow the instructions on it for dilution, application and safety. Work in the shade on cool paint, and test anything new on a small, hidden area first — particularly on trim, wraps and finishes you are not familiar with.

Not sure which product fits the job? SWAG Fast Lane asks three quick questions and puts the right kit together for you.

Wheels get dirty in a way no other part of a car does, and the deposits are not simply road dirt. Understanding what is on there explains why some cleaners work and others just make brown foam.

Brake dust

Every time you brake, the pads wear against the discs and throw off a mixture of metallic particles and binder material. Straight off the car this is loose dust and washes away easily.

The problem is heat. Braking gets discs extremely hot, and particles land on wheels hot enough to embed themselves into the finish. Once that has happened, no amount of shampoo removes them — they are physically stuck in the lacquer.

Iron fallout

Iron fallout is the same idea applied to the whole car. Hot iron particles — from braking, from railways, from industrial sources — land on paint and bond. Then they oxidise.

This is what those tiny orange-brown specks on a white car are. The particle rusts, expands slightly, and works its way into the clear coat. Left alone it can cause pitting.

How to tell them apart

• Loose brake dust: comes off with a normal wash. Wheels look clean afterwards.
• Embedded brake dust: wheels still look grey or speckled after washing, and feel slightly rough.
• Iron fallout on paint: orange or brown specks, most obvious on light-coloured cars, and the paint feels gritty when you run a hand over it inside a plastic bag.

Why an iron remover works

Iron removers contain a compound that bonds specifically to iron particles and makes them soluble. The purple or red bleeding you see is the chemical reaction — that colour is the iron dissolving, not the product changing colour for effect.

Because the reaction is specific to iron, these products are far gentler on the rest of the car than a strong acid. That makes them the right first choice on coated wheels and on paint.

Using one properly

1. Work on a cool, rinsed wheel or panel. Never hot, never dry, never in the sun.
2. Spray evenly and let it dwell as the label states. The reaction takes time; more product is not a substitute.
3. Agitate gently with a soft brush if the deposits are heavy.
4. Rinse thoroughly and completely, including behind the spokes.
5. Follow with your normal wash so no residue is left.

Our wheel range covers both the routine cleaners and the iron-removing products, and there is an iron remover for paintwork in the decontamination range.

The smell

Iron removers smell strongly of sulphur. That is normal, it is the chemistry doing its job, and it is a good reason to use them outdoors rather than in a closed garage.

Preventing the build-up

• Clean wheels regularly rather than waiting until they are baked on. Loose dust is trivial to remove; embedded dust is a job.
• Protect wheels. A wheel sealant or coating stops particles keying into the lacquer and makes every future clean easier.
• Do not use an aggressive acid on a routine basis. It works, and over time it dulls the finish that was keeping the wheel easy to clean.

Before you start

Always read the label on the product you are using and follow the instructions on it for dilution, application and safety. Work in the shade on cool paint, and test anything new on a small, hidden area first — particularly on trim, wraps and finishes you are not familiar with.

Not sure which product fits the job? SWAG Fast Lane asks three quick questions and puts the right kit together for you.

Once you understand what pH is telling you, choosing products stops being guesswork. It is the closest thing car care has to a universal label.

The scale in one paragraph

pH runs from 0 to 14. Around 7 is neutral. Below 7 is acidic, above 7 is alkaline. The further from 7, the more aggressive the chemistry — and the scale is logarithmic, so each step is a factor of ten, not a small increment.

Alkaline: for organic and oily dirt

Alkaline products break down oils, greases and organic matter. That covers most of what a car picks up from the road: traffic film, diesel residue, insect remains, general grime.

• Traffic film removers
• Snow foams intended for heavy soiling
• All purpose cleaners
• Degreasers and engine bay cleaners

The trade-off: alkaline chemistry also attacks waxes and sealants, which are themselves organic. Regular use shortens the life of your protection. That is a reasonable price in winter and unnecessary in July.

Acidic: for mineral deposits

Acids dissolve minerals and metallic contamination — the things alkaline products cannot touch.

• Water spot and limescale removers
• Some wheel cleaners, for baked-on brake dust
• Rust and mineral stain treatments

Acids demand more respect. They can stain or etch anodised and polished alloys, damage bare metal and discolour trim if left to dry. Never use an acidic product in the sun, never let it dry, and always rinse thoroughly.

Neutral: for maintenance

A pH-neutral product cleans by lifting dirt into solution rather than chemically attacking it. It is gentler, which means it is safe on wax, sealant and ceramic coatings and safe to use every week.

• Car shampoos for maintenance washing
• Coating-safe shampoos
• Quick detailers
• Interior cleaners for delicate surfaces

Our neutral shampoos are built for exactly this: the wash you do most often should be the one that costs you the least protection.

Choosing in practice

1. Routine wash on a protected car: neutral. Every time.
2. Heavy road film, winter salt, months of neglect: alkaline pre-wash, then a neutral contact wash.
3. Water spots, limescale, bonded brake dust: acidic, carefully, on a cool surface, rinsed well.
4. Do not stack them. Acid on top of alkaline residue is unpredictable. Rinse fully between steps.

A note on iron removers

Iron fallout removers are usually close to neutral and work by chemical reaction rather than by pH — they bond to iron particles and dissolve them, turning purple as they go. That is why they are safe on coatings when many wheel cleaners are not.

The rule that covers the rest

Use the gentlest thing that will do the job. Reaching for the strongest product every time works, and it costs you protection, trim and clear coat over the years. Start neutral, step up only when the job needs it.

Before you start

Always read the label on the product you are using and follow the instructions on it for dilution, application and safety. Work in the shade on cool paint, and test anything new on a small, hidden area first — particularly on trim, wraps and finishes you are not familiar with.

Not sure which product fits the job? SWAG Fast Lane asks three quick questions and puts the right kit together for you.

Every winter someone cracks a windscreen with a kettle. Every winter someone else scratches theirs with a scraper full of grit. Frost is routine in the UK and there is a right way to deal with it.

Never use hot water

Glass expands when heated. Pour boiling water onto a cold windscreen and the outer surface expands while the inner does not. On a screen with an existing chip, that is very often the moment it becomes a crack across your field of view.

Warm water is safer than boiling but still a bad habit: it refreezes within minutes, and now you have a sheet of clear ice instead of soft frost, plus frozen door seals.

What works

1. Start the engine and put the blowers on the screen, on cold air first, then warm as the engine heats. Cold air first avoids thermal shock.
2. Use a proper de-icer spray on the outside while the blowers work from inside. It melts from the top surface down.
3. Scrape only once the ice has softened. Use a plastic scraper, held flat, and keep it clean — a scraper dropped in the gutter and picked up again is full of grit.
4. Clear the whole screen, both mirrors and all windows. Driving with a letterbox-sized hole is an offence and, more to the point, dangerous.
5. Clear snow off the roof too, or it slides onto the screen at the first junction.

Do not scrape a dry, dusty screen

Frost bonds road dust to the glass. Dragging a scraper across that is dragging grit across glass under pressure. It is exactly how windscreens end up with fine scratches that flare into a starburst every time a car comes the other way at night.

Stopping it forming in the first place

• A windscreen cover is the least glamorous and most effective option there is.
• Park facing east if you can — the first sun does the work for you.
• Keep the inside of the glass clean. A filmed screen holds condensation, which freezes on the inside and is far more annoying to clear.
• A glass sealant makes ice release more easily and improves wet-weather visibility as a bonus.

The inside of the screen

Interior frost means moisture in the cabin. Common causes are wet mats, a blocked pollen filter, a leaking door seal or simply recirculation left on. Dry the mats, run the air conditioning to dehumidify even in winter, and clean the inside of the glass properly — the oily film from interior plastics holds moisture and makes it worse.

A dedicated glass cleaner and two cloths — one to clean, one to buff — will do more for winter visibility than anything else.

Wipers

Never run wipers on an iced screen. The blade tears on the ice, and a torn blade smears for the rest of the winter. Lift them off the glass overnight if frost is forecast, or at least free them by hand before switching them on.

Before you start

Always read the label on the product you are using and follow the instructions on it for dilution, application and safety. Work in the shade on cool paint, and test anything new on a small, hidden area first — particularly on trim, wraps and finishes you are not familiar with.

Not sure which product fits the job? SWAG Fast Lane asks three quick questions and puts the right kit together for you.

From about November to March, British roads are covered in a mixture of rock salt and grit. It keeps the roads usable and it is quietly the hardest thing your car has to deal with all year.

Why salt is worse than dirt

Salt is hygroscopic: it pulls moisture out of the air and holds it. A salt deposit sitting in a wheel arch does not dry out the way mud does — it stays damp, and it keeps a film of salty water pressed against metal for weeks.

That is the mechanism. It is not the salt itself that eats the car, it is the salt keeping water in permanent contact with steel, and accelerating the electrochemistry of rust while it does so.

Where it actually collects

• Wheel arches, especially the liners and the seams behind them.
• Sills and the underside of the doors.
• The boot lip and the lower tailgate.
• Suspension components, subframes and the underbody.
• Behind the number plates and inside the bumper.

Every one of those is somewhere you do not look during a normal wash. The bonnet gets the attention and the sills quietly rot.

The winter routine that matters

1. Rinse the underside and arches. No shampoo required. Plain water, aimed underneath and into the arches, is the single most valuable thing you can do in winter.
2. Use a pre-wash that can shift film. Salt comes mixed with oily traffic film; a neutral shampoo alone will not cut it. A traffic film remover is the right tool here.
3. Rinse thoroughly. Alkaline products left in seams are their own problem.
4. Dry the shuts and the boot lip. Water sitting in a seam overnight in freezing weather is not doing you any favours.
5. Keep protection topped up. Winter strips wax faster than summer does, and bare paint holds salt.

How often

More often than feels reasonable. Through a salted spell, a rinse every week is worth more than a full detail once a month. You are not trying to make the car look good — you are trying to stop salt sitting on it for eight weeks.

If it is too cold to wash properly, rinse anyway. Removing salt with cold water beats leaving it there.

Do not wash a frozen car

Water on a frozen panel refreezes in the seams, in the locks and around the door rubbers. At best you cannot open the door in the morning; at worst you tear a seal. Wait for above-freezing weather, and dry the shuts before you put it away.

Protection is the cheap insurance

A well-protected car sheds salty water instead of holding it, and the protection takes the chemical attack instead of your clear coat. Going into winter with fresh wax or sealant, and topping it up through the season with a spray protectant, is far less work than dealing with what happens if you do not.

Before you start

Always read the label on the product you are using and follow the instructions on it for dilution, application and safety. Work in the shade on cool paint, and test anything new on a small, hidden area first — particularly on trim, wraps and finishes you are not familiar with.

Not sure which product fits the job? SWAG Fast Lane asks three quick questions and puts the right kit together for you.