public void replaceCombustivelByID(DataTypes.Combustivel combustivel)
 {
     for (int i = 0; i < combustivelList.Count; i++)
     {
         if (combustivelList[i].id == combustivel.id)
         {
             combustivelList[i] = combustivel;
         }
     }
 }
 public void insertCombustivel(DataTypes.Combustivel combustivel)
 {
     combustivelList.Add(combustivel);
 }