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    how to change coolant

    How to Flush Your Vehicle’s Cooling System

    Toy car

    If your vehicle’s owner’s manual has instructions for draining the liquid from the cooling system, follow them. If you don’t have a manual, or if it lacks such instructions for flushing the cooling system, follow these steps to flush and change the coolant without endangering the environment. Park the vehicle in a safe place, away from children […]



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    Contact Allegiance Automotive

    Phone: 303-938-9454

    Email: AllegianceAutomotiveBoulder@gmail.com

    Address: 4939 Broadway Street #60
    Boulder, CO 80304

    Hours: M-F: 7:30 am – 5:00 pm
    Closed Saturday and Sunday

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