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Common Causes of Scratches and Swirl Marks on Car Paint
Lately I’ve been noticing a ton of fine scratches and those annoying swirl marks on my car, especially visible in sunlight. What bugs me is that I don’t even go off-road or anything like that. I mostly just wash it every couple of weeks, usually wherever is closest or fastest. I always thought I was being careful, but clearly something’s going wrong. I’m curious what actually causes this stuff in real life — not the textbook reasons — and what normal people do to avoid it without turning car care into a full-time hobby.

Yeah, this is way more common than most people think. I used to blame parking lots or random bad luck, but after owning a black car for a few years, I realized most of the damage came from washing, not driving. Automatic washes are the worst offenders — those brushes pick up dirt from hundreds of cars and just drag it across your paint. Even some “touchless” ones use pretty harsh chemicals.
At home, the biggest mistake I made was using one bucket and an old sponge. Tiny bits of grit get trapped and you basically sand your own car. Switching to a microfiber mitt and rinsing it often helped a lot. Drying is another issue — wiping dust off a dry car is almost guaranteed to leave marks.
I also learned that occasional clay bar and proper waxing make a big difference because they reduce how much dirt sticks in the first place. I came across this page when I was trying to understand exterior detailing better: Professional Hand Washing in Calgary
— it explains the process pretty clearly without overcomplicating it. Since being more intentional about how and where I wash, the paint has stayed noticeably cleaner and smoother.