Remove Vehicle. You don't want to discover the significance of antifreeze by being forced to pull over, due to an overheated engine. Antifreeze contains lubricants and anti-corrosion agents to keep components like your radiator properly lubricated and free from corrosion.
Fear, Pain, Excitement. Your dog may shiver due to fright or excitement, an occurrence common in smaller or excitable dog breeds. Some dogs tremble when they encounter other animals, or if they have a form of anxiety in which meeting other people makes them overly anxious. Loud noises ranging from thunderstorms to vacuum cleaners and power tools can also frighten dogs to a point of shivering. Shivering can also be a sign your dog is in pain.
1 Shaking is often a symptom of fever. 2  Ear infections due to mites, ticks or hair inside the ear can cause dogs to shake their heads vigorously. 3  Dogs shouldn't be exposed to the cold, as they can shake and tremble when they're feeling cold. 4  Loss of balance can also trigger tremors in dogs.