While driving in snow and ice can be dangerous, leaving your car parked all winter isn’t much better. Cold weather can cause damage to critical parts of your vehicle, from tires to the battery. Understanding how winter affects your car can help you prepare and avoid costly repairs. Here’s what you need to know.
**Tires**
When temperatures drop below 44°F, all-season tires begin to harden, reducing traction on icy or snowy roads. Additionally, tire pressure decreases by about 1 PSI for every 10°F drop in temperature. If you don’t check your tire pressure regularly, under-inflated tires can wear unevenly, increase the risk of a blowout, and reduce control on slippery surfaces.
**Fluids**
Cold weather thickens motor oil, transmission fluid, and antifreeze, making them less effective. To prevent damage, it's wise to let your car warm up for 10–15 minutes before driving. This helps thin out the fluids so they can circulate properly. At the start of winter, check all fluid levels and top them off if needed. Consider using a lighter oil grade or adding an engine block heater for easier starts. Also, never use water as coolant—opt for pure antifreeze to prevent freezing and cracking internal components.
**Engine**
Many people turn on the heater right after starting their car, but this can slow down the warming process. Wait at least 20 minutes before using the heater to allow the engine to run efficiently. Using the heater too soon can cause the engine to work harder and use more fuel.
**Windshields and Wipers**
Glass is sensitive to sudden temperature changes. Avoid pouring hot water on your windshield, as it can cause cracks. Similarly, using a high setting on the defroster may damage the glass over time. If you’re not a fan of ice scrapers, try an alcohol-based de-icer instead. In cold weather, wiper blades can freeze to the windshield, so tilt them away or remove them if ice builds up.
**Battery**
Extreme cold reduces battery voltage, making it harder to start your car. Car batteries perform best between 30°F and 90°F. If your battery is over three years old, consider having it tested and replaced if necessary. Storing your car in a garage or climate-controlled space can also help maintain battery health.
**Leaking**
Thickened fluids can damage seals, leading to leaks. Another issue is condensation that freezes inside the car’s systems. This can block power steering, brakes, and transmissions. Have your fluids flushed at the start of winter to remove any moisture buildup.
**Corrosion**
Road salt and moisture can cause rust, especially on the undercarriage, wheel wells, and brakes. Corrosion weakens the structure of your car and affects performance. To protect your vehicle, have it rustproofed at the beginning of winter and wash off salt deposits regularly.
Whether you need your fluids topped off, a new battery, or rustproofing, DaSilva’s Auto Body is here to help. Contact our Naugatuck location today to schedule a service and keep your car running smoothly all season long.
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