What are the methods to deal with rust on a car body?

[KingstonMarie]

There are mainly three methods to deal with rust on a car body. Below are detailed introductions to these three methods: 1. Using acidic substances to remove rust: such as dilute hydrochloric acid, oxalic acid, or acetic acid from the kitchen at home. However, it is important not to use excessive amounts to avoid secondary corrosion. After removing the rust, proper maintenance should be noted. 2. Using cleaning agents to remove rust: Dip a soft cloth in bathroom cleaner or apply toothpaste and repeatedly wipe the rusty area. However, this method is only suitable for removing small amounts of rust; it is more troublesome for larger rust areas. 3. Using machine oil to remove rust: Simply choose a transparent, non-sticky machine oil and gently rub the rusty area. After removing the rust, use a soft, dry cloth to wipe off any residual oil on the car body. However, water should not be used to rinse it off.