Methanethiol is added to natural fuel earlier than it reaches homes and gives gasoline it's well-known "rotten egg" smell to help home owners detect a fuel leak [2]. http://[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@silvia.woodw.