I built Car Wash Index because I was tired of washing on vibes and driving off with water spots.
The real enemies aren’t just rain — it’s wind, humidity, and cold.
So the tool gives a simple call for your city: WASH / BORDERLINE / WAIT, plus a Confidence score so you know how sure the call is. No login. No drama. Just timing that makes washes stick.
How to use it
Go to carwashindex.com
Pick your city
If it’s WASH, hit the Best Window (2–3h). If it’s BORDERLINE, weigh the trade-offs. If it says WAIT, save your time, money and sanity.
Quick tips
Black paint loves calm mornings
Cold day → aim midday
Ceramic/PPF → skip gust spikes for a cleaner dry
I’m sharing this as part of Plainforge — small, honest tools, free and privacy-first. If Car Wash Index helps you plan a better wash, a coffee keeps servers/APIs humming and funds new features.