Using a car polisher can transform your vehicle’s appearance, but beginners often make common mistakes that can ruin the finish. Avoid pressing too hard, which can damage the paint, or using the wrong pad, leading to uneven results. Skipping proper cleaning before polishing can also trap dirt, causing scratches. Overusing product or not moving the polisher consistently can result in swirl marks or patches. By understanding these five key mistakes, you’ll achieve a smooth, professional-grade shine while protecting your car’s paint.