If you filled your car's cooling system with water instead of a coolant-water mix, the drivetrain systems would be much more susceptible to corrosion. Many technicians recommend checking the level of ...

If you see liquid, the car probably has enough coolant ... it’s a good thing to try. Many cars have coolant level sensors that will alert you if your car is low on coolant.

The low coolant level ... mix of water and antifreeze, plays a vital role. The warning light activates when coolant drops below the safe threshold, prompting action to prevent engine damage and ...

If a vehicle’s cooling system only used water ... testing your level of protection, you can scroll down to “Checking the Freezing Point.” Related: Why Is My Car Leaking Coolant?

Related: How to Check Your Car ... water. Coolant should be added to the cooling system overflow reservoir when the engine is cold. The reservoir will have markings that show whether the coolant ...

so even if the car's coolant level has fallen only a bit below normal, it could still trigger the system's sensor," says John Ibbotson, CR's chief mechanic. Add coolant to the reservoir until the ...

The coolant in your car's radiator is not a forever liquid. Consumable fluids like ... Inspecting the reservoir's coolant level weekly or before taking a long road trip is good practice.

Something I've realized over the past few years poking with a large variety of cars: Nobody has low coolant or low oil sensors! I drove an '88 Mazda RX-7 with both, and they were quite valuable!