During the colder parts of the year, many people in Central TN find rats or mice living inside their car’s engine compartment. If you have a foul smell coming from the ventilation system or mice droppings on the floor of your car, you most likely have guests living inside. To keep them from taking shelter near your engine, you can try placing deterrents like cedarwood, peppermint oil, dog hair, or mouse traps inside your car. You can also try propping your car’s hood open overnight to keep it cold—mice shelter near our engines for warmth.