How to prevent brake disc from rusting? In recent years, more and more families are buying cars. After all, everyone's living standard is getting better and better. Buying a car is a natural way to get on the road, and no driver wants to have an accident. Speaking of traffic accidents, there are many traffic accidents are caused by the brake problems of the car, the car brake is owned by the car brake disc, but the car brake disc use too long will cause the car brake disc rust. So how to deal with the problem of brake disc rust? First of all, it is quite normal for car brake discs to get rusty. No matter whether the price of a car is high or low in quality, the car brake discs will appear rusty. This is unavoidable. The brake discs are in direct contact with the air. Generally speaking, this component is not to carry out anti-corrosion treatment, moreover, the car brake disc is "iron" do, metal even if not how to use, will rust, not to mention the frequent use of car owners of the car brake disc? In addition, when we drive in the rain, there will be rain into the car brake disc, but also exacerbated the corrosion of the brake disc. Then what good method can come to prevent brake disc to rust? One netizen said, put some butter on the brake disc of a car. It's true that butter has some anti corrosive properties, but it's suicidal to smear them on a car's brakes, which stop because they and their pads stop the car with a lot of friction, this means that the brakes need a lot of friction, but applying oil to the brakes reduces the amount of friction needed to stop, potentially causing the brakes to fail. So don't listen to this idiot, put butter, grease, gasoline on the brakes. If the car owners of the brake disc rust, the proposal or go to the garage to find a professional master to Polish, polishing and so on, so that is responsible for their car, but also responsible for their own life.