After a few years, your car’s finish can get damaged by everyday crud. Airborne metallic particles, road tar, insect residue, bird droppings, honeydew (often mistakenly called tree sap), road salt ...

We have all seen the commercials. A guy walks into a junkyard and finds a weathered-looking car with severely faded paint, and with one swipe of the “miracle” product, it suddenly looks factory-new ...