Are you getting "sunbursts" from your free car wash at a gas station? Equipment quality and maintenance are key to protecting your paint! Worn brushes harbor dirt and sand, becoming an invisible killer. Low-quality cleaning agents can corrode the paint surface. High-end equipment uses EVA foam brushes combined with intelligent algorithms to mitigate risk. For new cars with darker colors, opt for manual cleaning. For daily cleaning, choose a reliable car wash with clean brushes—the equipment determines the minimum, while maintenance determines the maximum.