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    Summer Road Trip Prep: What Your Mechanic Wants You to Know

    Pinnacle Motorsports Feb 20, 2026 5 min read

    Before you load up the car and hit I-65 or I-64 this summer, take 30 minutes to make sure your vehicle is ready. Here's what we check for every customer planning a long drive.

    Cooling System — The #1 Roadside Breakdown Cause

    Overheating is the most common cause of summer roadside breakdowns. Your cooling system works harder in summer heat and highway driving.

    • Check coolant level and condition — flush if it's been 2+ years
    • Inspect radiator hoses for swelling, cracking, or soft spots
    • Test the radiator cap for proper pressure holding
    • Verify the cooling fan operates correctly
    • European vehicles: check for plastic coolant component deterioration

    💡 Carry a gallon of coolant (the correct type for your vehicle) and a gallon of water in your trunk. If you overheat, let the engine cool completely before opening the radiator cap.

    Tires — Your Connection to the Road

    Hot pavement and high speeds stress tires significantly.

    • Check tread depth — minimum 4/32" for highway driving (more than the legal 2/32" minimum)
    • Inspect for cracks, bulges, or uneven wear
    • Set pressure to the door jamb spec (not the tire sidewall max)
    • Check your spare tire — is it inflated and serviceable?
    • Tire age matters: replace tires older than 6 years regardless of tread

    Brakes — Stop When You Need To

    Mountain driving, heavy traffic, and loaded vehicles all put extra demands on brakes.

    • Inspect pad thickness — minimum 3mm for a long trip
    • Check brake fluid level and color
    • Test for pulsation or pulling during braking
    • Verify brake lights work properly

    AC System — Comfort and Safety

    A working AC isn't just about comfort — it affects driver alertness and safety. If your AC isn't blowing cold, get it checked before your trip. Common causes include low refrigerant, a failing compressor, or a clogged cabin filter.

    • Test AC output temperature (should be 35-45°F at the vent)
    • Replace cabin air filter for maximum airflow and air quality
    • Listen for unusual compressor noises
    • Check for refrigerant leaks

    Fluids, Belts & Battery

    A comprehensive fluid check and belt inspection prevents most mechanical surprises on the road.

    • Engine oil — fresh oil before a long trip is cheap insurance
    • Transmission fluid — check level and condition
    • Power steering fluid, brake fluid, windshield washer fluid
    • Serpentine belt — inspect for cracks, glazing, or fraying
    • Battery — test voltage and terminal connections

    Pack an Emergency Kit

    Even a well-maintained vehicle can have issues. Be prepared:

    • Jumper cables or a portable jump starter
    • Basic tool kit (pliers, screwdrivers, adjustable wrench)
    • Flashlight with fresh batteries
    • First aid kit
    • Phone charger and roadside assistance contact info
    • Coolant, oil, and water — one quart each

    Questions? We're Here to Help.

    Schedule a service appointment or call our team for expert advice.

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    490 Jane Sarles Ln, Clarksville, IN 47129

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