Rust on your car is never good, however different levels of rust call for different levels of concern. Minor rust can be fixed at home by sanding it away and resealing. Severe rust must be taken to a mechanic or (in extreme cases) you may just need to buy a new car. If you're unsure, consult a professional to make sure your car is safe.
Rust occurs when the iron in your car's steel frame oxidizes. The metal coming into contact with moisture or salt can speed up this process. There are 3 types of rust damage to a car: minor, moderate, and severe.
Minor rust damage is normally just a small rust hole on the body of your car that spans a few inches or something similar. Minor damage is easy to fix at home. Instructions can be found further down in this article.
Moderate damage is a rust spot that is larger than minor damage and has layers to it, like an onion. While at home repair can be done, the bigger the hole you fix, the less stable the fix will be.
For severe rust damage you're looking at something like rust on your frame or holes in your floorboard. The only way to fix this rust is by replacing the panels or welding new metal onto the frame, which is extremely costly.
Repairing minor rust on your vehicle is a relatively easy job that can be done in as little as an hour or two. It should only cost you between $20-$100 depending on what tools you need to buy. Here is a simple run down on how to fix surface rust.
Rust can become expensive fast. Depending on the part of the car that is rusted out you could pay between $400-$2500. Sometimes fixing the rust could cost more than the car is worth. When deciding whether to get a new car or fix your old one you should take these things into account.
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