How Heat & Humidity Mess with Your Truck

It wouldn’t be summer without high humidity levels. When the humidity is high, the outside temperature feels much hotter. The start of summer has brought us high temperatures and humidity, a bad combination that is hard on trucks. And with the high humidity levels we’ve been having, it’s important to do vehicle maintenance checks daily to help prevent costly repairs.
1. Cooling System – An overheated engine is the top cause of summer breakdowns. You should check coolant levels before and after a journey. Have you flushed the coolant in the past year? If not, you should flush it as soon as possible. The rust and scale deposits that have built up can cause overheating and damage your coolant system. Also, if the anti-freeze concentration is thin, it won’t be effective.
2. Tires – Heat and humidity affect tire pressure and treads. On very humid days, the excess moisture in the air causes tires to swell. Humidity can also cause heat rot – cracking, splitting, and leaking. High temperatures cause air molecules in tires to vibrate and push against the walls, which causes them to expand. Also, check the tire treads. Excessive heat causes tires to wear down quicker and can exacerbate pre-existing damage.
3. Oil Change – We know oil changes are part of fleet maintenance. However, an extra oil change in the summer can be beneficial since extreme heat speeds up the thermal breakdown of oil, making it a less effective lubricant.
4. Battery – Summer heat can also affect batteries. Check the battery in your truck for corrosion. The buildup of corrosion can weaken the battery’s voltage. Use a battery cleaner to neutralize the acid and reduce the damage.
At DVC, we take our vehicle maintenance very seriously. The safety of drivers is of the utmost importance. Our vehicles and trailers are maintained on a strict schedule to help prevent breakdowns – no matter the season. We’re ready to take care of your transportation needs! Give us a call today at 610-372-6511 to get a quote!


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