Brush-style automatic washes are the single biggest cause of swirl marks. A proper hand wash cleans more gently and more thoroughly.
The problem with brush washes
The brushes carry grit from every car before yours and drag it across your paint. That's where most swirl marks come from.
Touchless washes
Touchless washes avoid brushes but use stronger chemicals to compensate, which can strip wax and sealant faster.
The hand wash difference
- Clean mitts and fresh water
- Gentle on paint and protection
- Attention to wheels, seams and trim that machines miss