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Mineral Wells Winter Car Prep: Your Local Guide to Cold Weather Vehicle Care

  • Writer: Kasi Drummer
    Kasi Drummer
  • Aug 21
  • 4 min read

Winter in Mineral Wells might not bring the harsh conditions you'd see up north, but don't let our Texas location fool you, those December and January mornings when temperatures drop to the low 30s can still catch your car off guard. After 20+ years serving this community, we've seen plenty of folks get stranded because they didn't prep their ride for our unique winter conditions.


Texas in the winter

Here's your complete guide to getting your vehicle ready for Mineral Wells winter weather, from someone who's fixed the aftermath of poor winter prep more times than I care to count.

Why Mineral Wells Winter Car Prep is Different

Most winter car guides are written for places that get snow and ice for months. That's not us. Our challenge is different, we get those sudden temperature swings from 70°F one day to 32°F the next, and that's actually harder on your car than consistent cold.


When it's 75° on Tuesday and 35° on Thursday morning, that rapid change stresses every system in your vehicle. Your battery, cooling system, tires, and fluids all have to adapt fast, and sometimes they don't make it.


Battery Care

Power Probe diagnostic tool

Remember our August post about Texas heat killing batteries? Well, winter isn't much kinder, especially with our temperature swings.


What Cold Does to Your Battery

When the temperature drops 20 degrees, your battery loses about 10-20% of its cranking power. If your battery was already marginal in summer, that first 32°F morning is going to leave you calling for a jump.


Battery Winter Prep Checklist

  • Load test your battery (we do this free—takes 5 minutes)

  • Clean those terminals with baking soda and water

  • Check the hold-down bracket—cold makes everything brittle

  • Look for corrosion buildup around the terminals


Pro tip from the shop: If your battery is more than 3 years old and you've noticed slower cranking, replace it before that first freeze. Trust me, it's cheaper than a tow truck.

Cooling Systems in The Winter

"But it's cold—why worry about the cooling system?"


Because antifreeze isn't just about preventing freeze-ups. It's about protecting your engine when temperatures swing from 75° to 35° overnight.


Cooling System Winter Prep

Check your coolant mixture: You want a 50/50 mix of antifreeze and water. This protects down to -34°F, which is way more than we need, but it also prevents corrosion year-round.


  • Inspect those hoses: Cold makes rubber brittle. A hose that survived August heat might crack when it hits 30°F and then heats up to operating temperature.

  • Test your thermostat: If it's sticking open, your heater won't work well, and your engine will run inefficiently in cold weather.

  • Radiator cap inspection: A weak cap that held pressure in summer might fail when pressures change with temperature swings.



Tire Pressure: The Math Changes in Winter

Coats 1300 Direct Drive Wheel Balancer

Here's something most folks don't know: for every 10°F drop in temperature, your tire pressure drops about 1-2 PSI.


If your tires were set to 32 PSI on a 70° day and it drops to 30° overnight, you're now running around 28 PSI. That's enough to trigger your TPMS light and affect how your car handles.


Winter Tire Maintenance

  • Check pressure weekly during temperature swing season

  • Inspect for sidewall damage—cold makes small cracks worse

  • Look at your tread depth—wet roads and cold temperatures need good grip

  • Don't forget the spare—it loses air too


Fluids That Hate Temperature Swings


Oil Changes Matter More in Winter

Cold oil is thick oil, and thick oil doesn't flow well when you start your engine. If you're running conventional oil and it's been 4,000+ miles, get it changed before winter hits hard.


Our recommendation: Switch to full synthetic if you haven't already. It flows better in cold weather and protects better during those quick temperature changes.

Other Fluids to Check

  • Windshield washer fluid: Use winter-grade fluid rated for freezing temperatures

  • Power steering fluid: Should be clear, not dark or foamy

  • Brake fluid: Gets contaminated over time and can freeze in extreme cold

  • Heater and Defroster: You'll Miss Them When They're Gone



Quick Heater System Check

  • Test your heater output: should blow hot within 5 minutes of starting

  • Check your cabin air filter: a clogged filter restricts airflow

  • Make sure all vents work: defrost, floor, and dash vents

  • Listen for unusual noises: squealing belts or grinding sounds


Emergency Kit for Mineral Wells Winters

Even though we don't get blizzards, you should still be prepared. Here's what we recommend keeping in your car:


  • Basic Winter Emergency Kit

  • Jumper cables or portable jump starter

  • Flashlight with extra batteries

  • First aid kit

  • Blanket or warm clothes

  • Water and snacks

  • Phone charger (12V or portable battery)

  • Ice scraper (yes, even in Texas)

  • Small shovel or traction aids

  • Local Considerations

  • Extra water (dehydration happens in cold weather too)

  • Cash for emergencies

  • Local emergency numbers programmed in your phone

  • Map of alternate routes (GPS can fail)



When to Schedule Your Winter Prep

Best timing: Late October or early November, before that first hard freeze but after the worst of the summer heat.


Don't wait until: You're already having problems. By then, you might be looking at emergency repairs instead of preventive maintenance.


Winter car prep in Mineral Wells isn't about surviving a blizzard, it's about handling temperature swings, protecting your investment, and making sure you're not the one calling for help on a cold morning.


The small investment you make in winter prep will save you money, time, and frustration throughout the season. Plus, a well-maintained car is safer for you and your family.


Need Help with Your Winter Car Prep?

At S&S Auto and Diesel, we've been helping Mineral Wells drivers prepare for winter since we took over this location. We know the specific challenges our climate presents, and we've got the experience to get your car ready.


Our winter prep service includes:
  • Complete battery and charging system test

  • Coolant system inspection and service

  • Tire pressure and condition check

  • Fluid level and condition assessment

  • Heater and defroster operation test

  • Emergency preparedness consultation


Ready to schedule? Give us a call at (940) 325-1221 or stop by at 205 NE 22nd Ave, right behind Taco Bell off Highway 180. We're open Monday through Friday, 9AM to 6PM.


Don't wait until that first freeze, get your car ready now, and drive with confidence all winter long.


S&S Auto and Diesel is Mineral Wells' community-first, woman-owned auto shop. From quick maintenance to major repairs, our NAPA-certified team delivers honest, same-day service that keeps your family safe on the road.

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