Question

Bottoms of vehicles are highly corroded in hilly areas?
plz give me the write answer​

Answer 1

Another effective way to protect the undercarriage of your car is to get an oil, wax or tar-based coating. Such coatings act as a barrier and keep out rust-causing salt, moisture, and dirt. Atomized oil sprays are used widely today to undercoat the underside of most cars. They can be applied to both new and used cars.

Answer 2

The Main Area is the Engine

Your sedan's engine and the trunk are the two areas that are most susceptible. This is because the rust results in a decreased functionality of the air intake unit.