Driving OTR during the summer months brings a completely unique set of hazards. When the ambient temperature hits 90°F, the actual asphalt temperature beneath your 18-wheel rig can soar past 140°F. This intense radiant heat stresses your engine, compromises your tires, and drains your energy.

Staying safe and keeping your truck moving without downtime requires a proactive summer plan. Here is what you need to track before you drop the hammer this season.

Tires are the number one cause of roadside breakdowns during the summer. As the temperature rises, the air inside your tires expands. Running a tire that is already under-inflated causes the sidewalls to flex excessively, generating catastrophic internal friction. Combined with scorching highway pavement, this is a prime recipe for a dangerous high-speed blowout.

• The Action Plan: Never skip your pre-trip check. Check your tire pressure when the tires are “cold” (before driving). Look out for uneven wear or early signs of tread separation caused by high road heat.

Your engine works twice as hard in the summer to maintain safe operational temperatures. A small leak or a worn belt can quickly escalate into a cracked head or a completely ruined engine block on a steep grade.

• The Action Plan: Inspect your coolant levels daily. Check all radiator hoses for soft spots, bulges, or cracks. Clean away bugs and debris blocking airflow through the radiator fins.

If you do not have a reliable way to keep your cab cool during mandatory rest breaks, your sleep quality will plummet. Fatigue sets in much faster when your body is struggling to stay cool, directly impacting your reaction time the following morning.

• The Action Plan: Utilize high-quality reflective sun shades on your windshield and side windows when parked. If your rig doesn’t feature a standalone APU, leverage cloud management scheduling platforms like ADUT to log your downtime effectively, ensuring you plan rest stops at locations with shore power or robust driver amenities.