For most city cars in India, an exterior wash every one to two weeks and a full interior clean once a month keeps the car looking good and protects the paint. The right gap for you depends on three things: where the car is parked, the season, and what lands on it.
Where the car is parked
Open parking or on the street. Dust settles every day, and bird droppings, tree sap and flower debris land on the paint. Wash every week. Bird droppings are acidic and can etch clear coat within days in hot sun, so wipe them off with a damp microfibre cloth as soon as you see them, even between washes.
Covered or basement parking. The car stays cleaner, but road grime and brake dust still build up from driving. Every two weeks is usually enough.
Car cover. A cover keeps dust off, but a dusty cover dragged across the paint causes fine scratches. Wash the car before putting a cover back on after a dirty drive, and every two to three weeks otherwise.
The season
Monsoon. Muddy water splashes into wheel arches and under the car, and rain doesn't clean — it leaves water spots and a film of dirt when it dries. Wash every week, and pay attention to the wheels and lower panels.
Summer. Heat bakes dust and droppings onto the paint. Weekly washes and a coat of spray wax every couple of months make the surface slicker, so dirt comes off more easily.
Winter. Fog and dew mix with dust into a grey film on the glass. Every two weeks is usually fine; keep the windscreen clean for visibility.
How much you drive
A car that sits for a week collects dust; a car that does a daily 40 km commute collects road film, tar spots and brake dust on the wheels. Heavy use means more frequent washes, especially of the wheels.
A simple schedule
- Every 1–2 weeks: exterior wash (foam, hand wash, wheels, dry).
- Every month: interior vacuum, mats, dashboard and glass.
- Every 2–3 months: a deeper clean with wax, trim dressing and seat spot cleaning.
What happens if you wait too long
Dust itself doesn't damage paint, but wiping dry dust off does — it acts like sandpaper and leaves swirl marks. That's why a proper wash starts with a rinse and snow foam to lift dirt before anything touches the paint. Bird droppings, tree sap and tar left for weeks can stain the clear coat permanently and need polishing to remove.
The easiest way to stick to a schedule is to book the next wash when you finish this one.