Most detailing advice online is written by Americans who park in climate-controlled garages and wash their cars on concrete driveways in 25-degree sunshine. That's not New Zealand. Your car probably lives on the street or under a carport, it rains sideways for half the year, and you've got pollen, salt air, and bird droppings to deal with year-round. Here's a schedule that actually works for how we live.

The Three Levels of Detailing

Before talking frequency, it helps to define what we mean. "Detailing" covers a wide range, and most people conflate all of it into one thing.

Maintenance Wash: Every Two Weeks

This is your baseline. Every two weeks, your car needs a proper hand wash. Not a drive-through auto wash — those spinning brushes drag grit across your paint and cause the swirl marks you'll later pay to have corrected.

If your car has ceramic coating, maintenance washes are faster and easier because contamination doesn't bond as aggressively. You might be able to stretch to three weeks between washes in winter if the car is garaged. But if it lives outside, two weeks is the maximum — especially in Auckland where salt air is a constant presence even 10 kilometres from the coast.

During pollen season (September through November in Auckland), you might need to wash weekly. Pollen contains acids that etch clear coat when left sitting in morning dew.

Decontamination: Every Three to Four Months

Run your hand across your paint after washing. If it feels rough or gritty, that's bonded contamination — iron particles from brake dust, industrial fallout, rail dust (common near Auckland's rail corridors), and environmental deposits.

A decontamination every three to four months keeps this under control. The process involves spraying an iron fallout remover (you'll see it bleed purple as it reacts with iron particles), followed by a clay bar or clay mitt pass, and finally a tar remover on the lower panels.

If you drive on the motorway daily, park near construction, or live near the industrial areas of Penrose, Onehunga, or East Tamaki, you'll need to decontaminate more frequently — every two to three months.

Skipping decontamination is how "clean" cars end up with paint that feels like sandpaper. Those bonded particles cause scratching during every subsequent wash.

Full Detail: Once or Twice a Year

A full detail is the reset button. It corrects the minor damage that accumulates despite regular washing, deep cleans the interior, and reapplies or maintains your paint protection. Interior surfaces need attention too — different materials have different care cycles, and if your car has leather or Alcantara upholstery, each has its own maintenance requirements that factor into your detailing schedule.

For most Auckland cars, twice a year is ideal — once in spring (after winter's rain, mud, and road grime) and once in autumn (after summer's UV exposure, pollen, and insect residue). If your car has ceramic coating in good condition and you're diligent with maintenance washes, once a year may be sufficient.

Adjusting for Your Situation

Where you park

Garage: you can push every interval slightly longer. The car isn't exposed to rain, bird droppings, or tree sap between drives. Covered carport: moderate protection — rain doesn't hit it but airborne contaminants still settle. Street parking: tighten every interval. Your car gets the full force of Auckland's weather 24/7.

Your paint protection

Ceramic coated: maintenance washes are easier, decontamination intervals can extend slightly, and the coating itself gets a maintenance boost during your annual or biannual full detail. If you're considering a coating, our guide to the best ceramic coating options in Auckland covers what to look for and what to avoid. Wax or sealant: you'll need to reapply after every decontamination and more frequently in summer when UV breaks it down faster. No protection: your paint is absorbing everything directly. Every interval should be at its shortest, and you should seriously consider getting some form of protection applied.

How you use the car

Daily motorway commuter: more stone chip exposure, more brake dust, more road film. Increase wash frequency. Weekend car: lower mileage means less contamination, but sitting unused under a carport grows mould on seals and trim — give it a wash before and after storage periods. Coastal driver: anyone regularly driving to Piha, Muriwai, the Hibiscus Coast, or along Tamaki Drive is getting salt deposited on every trip. Rinse the car after coastal drives, even if you're not doing a full wash.

The Schedule at a Glance

Consistency matters more than perfection. A car that gets a decent wash every two weeks will look better after five years than one that gets a single heroic detail annually and nothing in between. Build the habit, and the paint takes care of itself.