Weekend and garage cars: keeping a car that sits looking its best
Short answer
A car that sits still collects dust, and wiping dust off dry scratches the paint. Keep it covered or garaged, wash it properly rather than dusting, and protect it with a sealant or ceramic coating. A decontamination wash once a year and an occasional polish keep it looking its best.
Why does a garaged car still get dirty?
Garages are dusty. Dust, pollen from an open door and residue from things stored nearby all settle on a parked car. A car that sits for weeks can look surprisingly dull, even though it hasn't moved.
Is a quick detailer spray and towel enough?
For a light layer of dust, a good quick detailer and plenty of clean microfiber towels can be fine if you're gentle. But thicker dust is abrasive. Wiping it off dry, or with a feather duster, drags it across the paint and causes fine scratches. When in doubt, wash it.
Should I use a car cover?
Indoors, a soft, breathable car cover keeps dust off. Put it on a clean car only, since a cover over a dusty car can rub dirt into the paint. Outdoors is trickier: a cover that flaps in the wind or traps moisture can do more harm than good.
How do I keep it looking its best long term?
Protect the paint with a sealant or ceramic coating so dust and grime release easily. Plan a decontamination wash about once a year, and an exterior detail or paint correction when swirls start to show.
At APC Auto Spa
APC details weekend cars, classics and exotics at the same set prices by vehicle category, with no upcharge for exotics. For cars that need more than a single-stage polish, paint correction is quoted on site and billed by the hour.
For longer term protection, see APC's ceramic coatings or Seattle Ceramic Coatings for plain answers about coatings.
Frequently asked questions
- How often should a garage car be washed?
- Whenever dust builds up enough that you would be tempted to wipe it off. Washing is safer than dry dusting.
- Does APC charge more for exotic cars?
- No. Pricing is set by vehicle category, and there is no upcharge for exotics.
- Is paint correction worth it on a weekend car?
- If you care about the finish and see swirls or haze, often yes. It is quoted on site so you know what is realistic first.
Reviewed by Heather Humphrey, co-owner of APC Auto Spa ยท Last updated October 2026
Heather has co-owned APC Auto Spa since 2015 and is trained in every service APC offers.