A coolant exchange replaces the fluid in your cooling system with the correct type and concentration for your engine, before the old coolant stops protecting the metal inside it. Done at your location. Call 704-842-9774.
We drain, refill and bleed the system where the vehicle is parked, then run it to temperature to confirm the air is out.
The Right Specification
Coolant types are not interchangeable. We use the one your engine calls for rather than a universal bottle.
Ask Us The Interval
Call 704-842-9774 with year, make, model and mileage and we will tell you whether yours is due.
Test the old coolant, drain it, refill with the correct specification and concentration, bleed the air out, then run the engine to temperature and check the level settles.
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The vehicle details tell us the coolant specification and the system capacity, so the right fluid and the right quantity arrive with us.
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With the system drained we look over the hoses, clamps, pressure cap and thermostat housing, because a weeping seal often hides behind old coolant deposits.
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Refilled to the correct mix, air bled properly, then run up to full temperature to prove the thermostat opens and the cooling fan cuts in before we finish.
Coolant stops protecting against corrosion long before it stops looking like coolant, and in a climate this hot that margin is the one you rely on in August traffic.
Coolant is not just antifreeze. It carries heat out of the engine, raises the boiling point so the system can run under pressure, and contains additives that stop the aluminum, iron and solder inside from corroding. Those additives are the first thing to wear out, and they do it silently while the fluid still looks the right color. Once they are gone, corrosion products start circulating and settling in the radiator and heater core, right when the weather is asking the most of the system: Charlotte logged 72 days at or above 90 degrees this past summer against a normal 44, and in stop-and-go traffic on Independence Boulevard there is no airflow through the radiator to compensate. Changing the coolant on schedule keeps that safety margin where it should be.
Adding coolant to a system that is low brings the level back but leaves the old fluid, and its additives, exactly where they were. An exchange removes the old mixture and replaces it with the correct specification and the correct ratio for your engine, which is what restores both the boiling point and the corrosion protection. Mixing types, or topping up with plain water over a long period, is what causes the sludge that blocks a heater core.
A system that needed topping up in the first place is also worth a second look, because coolant does not get used up in normal running. A slow loss means a seeping hose, a weeping pump seal, a cap no longer holding pressure or, less often, something more serious. Checking where it went is part of the job rather than an extra.
The coolant calls that come in most often around Charlotte, and what each usually turns out to be.
Coolant that has turned brown or cloudy. The additive package is spent and corrosion products are in circulation. Exchanging it then is straightforward; waiting until the radiator blocks is not.
A system topped up with whatever was in the garage. Mixing coolant types can produce a gel that stops flowing altogether. The fix is a proper flush and a refill with one correct specification.
Common coolant questions: how often it needs changing, which type your engine takes, and what we check while the system is drained.
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Cars, SUVs, light trucks and vans of all makes, using the coolant specification each engine requires. Heavier trucks go through our truck repair service.
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Depends on the type. Older green coolants run shorter intervals, extended-life types much longer. Call 704-842-9774 with your vehicle details and we will tell you which yours uses.
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Topping up replaces volume, not the worn additives, and if the level keeps dropping there is a leak to find. Regular top-ups are a symptom rather than a solution.
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Hoses, clamps, pressure cap, thermostat housing and the radiator. Old coolant deposits often mask a weeping seal that becomes obvious once everything is clean.