1313 S PACIFIC MINEOLA, TX 75773
East Texas summers are brutal on vehicles. Discover how extreme heat silently drains your car battery, accelerates tire dry rot, and stresses your engine's cooling system. Protect your GMC or Buick before the real heat hits.
High temperatures actually cause more damage to car batteries than freezing winter weather. Extreme heat accelerates battery fluid evaporation and degrades internal components.
When you park your vehicle outside during an East Texas summer, under-hood temperatures can easily exceed 150°F. This intense heat causes the battery fluid (electrolyte) to evaporate. When the fluid level drops, the internal lead plates are exposed to the air, which leads to rapid sulfation and corrosion.
Once a battery's internal plates corrode, it permanently loses its ability to hold a charge. This is why a battery that survived the summer often suddenly fails on the first cold morning of autumn—the damage was already done during the heatwave.
Tire dry rot, technically known as sidewall cracking, is a common issue in East Texas. Rubber is naturally flexible, but when exposed to prolonged periods of intense heat and ultraviolet (UV) radiation from the sun, the chemical bonds in the rubber begin to break down.
As these oils evaporate out of the tire compound, the rubber becomes hard, brittle, and prone to cracking. Driving on sun-baked asphalt—which can reach temperatures over 140°F—further accelerates this degradation. Tires that sit parked for long periods without being driven are especially susceptible because driving helps distribute protective anti-aging chemicals throughout the rubber.
To extend the life of your tires, park in the shade or a garage whenever possible. Check your tire pressure monthly; underinflated tires generate excess heat while driving, compounding the damage. If you notice cracks, schedule a service visit immediately.
If your engine can't shed heat, major mechanical failure is inevitable.
Engine coolant doesn't last forever. Over time, it turns acidic and loses its ability to resist boiling. Old coolant will erode your water pump, heater core, and radiator from the inside out, leading to expensive leaks and overheating.
Just like your tires, the rubber hoses that carry coolant and the serpentine belt that runs your water pump dry out and crack in high heat. A blown radiator hose will leave you instantly stranded on the side of the highway.
When refrigerant levels are low, your AC compressor has to work twice as hard to cool the cabin. This constant strain during triple-digit weather drastically shortens the lifespan of the entire AC system.
Generic maintenance schedules aren't built for East Texas summers.
At Dow Buick GMC, our factory-trained technicians live and work in the same extreme climate you do. We understand that a battery rated for 5 years nationally might only last 3 years here. We know exactly what UV damage looks like on a set of GMC Sierra tires, and we know how to properly test a Buick's AC system to ensure it can handle August heat.
Extreme heat causes the battery fluid (electrolyte) to evaporate faster. This exposes the internal lead plates, leading to rapid corrosion and sulfation, which permanently destroys the battery's ability to hold a charge.
UV rays from the sun and intense heat from the pavement break down the chemical bonds and oils in the tire's rubber. This causes the rubber to become brittle and crack, a condition known as dry rot, which drastically increases the risk of a blowout.
Due to the extreme summer heat, most standard car batteries in Texas last between 3 to 4 years. It is highly recommended to have your battery load-tested annually once it reaches 3 years of age.
A proper summer prep check should include a battery load test, a visual inspection of tires for dry rot and tread wear, a coolant fluid condition test, an inspection of all rubber belts and hoses, and an AC performance test.
No, it is extremely dangerous. Dry rotted tires have lost their structural integrity and are highly susceptible to sudden blowouts or tread separation, especially at highway speeds and high temperatures. They should be replaced immediately.
Trust the certified technicians at Dow Buick GMC to keep your vehicle reliable through the harshest East Texas summers.