Keep your fuel tank full as empty gas tanks can cause major damage to your vehicle during cold weather.  Why?  Cold and fluctuating temperatures cause condensation to form on the walls of an empty gas tank and when that water eventually drips down into the gas and mixes together, it will freeze up, blocking any flow of gas to the engine. Repairs for this can be expensive so bite the bullet now and fill up your tank during this Florida cold snap. 

Check your car’s belts and hoses as cold temperatures can weaken and even break them.

Check your defrosting unit since windshields tend to fog up in cold weather because moisture from inside the car condenses on the glass… and that makes it very difficult to see.

Make sure your antifreeze is full to protect your engine in both extreme heat and cold. 

Finally, make sure your battery is strong.  Cold weather forces your car engine to work harder and thus the strain on your battery increases.