Reynolds, who works with Texas-based automotive professionals, says tires come first once temperatures dip below freezing. Deflated tires hurt mileage, and they cut traction, which makes them a serious risk on the road.

Fluids come next. Your radiator relies on antifreeze to keep important parts under the hood from freezing, so look for cracks or leaks before they turn into an expensive problem. For fluid levels, AMSOIL has a step-by-step guide to checking them right at home. Cold also makes car parts brittle, especially where small cracks or fractures already exist.

If you have already protected your plants, outdoor faucets, and pets, the parked car is the next job. Nobody wants to be running late on a 20-degree morning with a car that won't start or tires that sit low. Batteries and heating round out the expert advice, and the full list of tips lives on The Car Pro website.

A cracked part you ignore this week could be the one that goes.