Your car will also have an engine with internal water passages, a water pump, a heat exchanger called a radiator, and a bunch of flexible hoses connecting these things together. How does this happen? Well, unless you’re driving either an old VW Bug, a Chevy Corvair, or a Porsche, your car will have a “water” cooled engine. And that heat must be extracted from the mechanisms inside the engine and efficiently dumped to the outside air. At the same time, that engine produces a considerable amount of waste energy in the form of heat. The gasoline or diesel engine in your car or truck produces the necessary power to push you down the road. An Important Caution with Pre-Owned Vehicles.
Some vehicles require it every 2 years whilst others can come with a ‘lifetime’ blend of coolant.
Auto coolant color manual#
Check the owners manual for your vehicle of with your service dept. This again depends on your specific vehicle’s manufacturer recommendation. Tap water or well water is not recommended due to the minerals in the water. For temperatures below that, up to 70% coolant concentrate can be used. From concentrate, most of the time a 50 percent coolant and 50 percent distilled or de-ionized water dilution is recommended.This will protect the system from freezing to about -34 F. Which could then lead to an expensive doctors bill. Check the owners manual.įirst, check to make sure the solution of coolant/antifreeze you buy is not already pre-diluted. Mixing the wrong types could cause radiator and cooling system damage (which could lead to engine/waterpump damage) and a repair bill that’ll make you pass out on the floor. Unless you’re an expert on the exact chemical composition and reactions of the various types, keep it simple and stick with what the manufacturer recommends. For example, Toyota has green and red, but it depends on the year and model of the vehicle as to which kind is needed. Various aftermarket companies and vehicle manufacturers use different colors. You can also check with your (manufacturer) dealership parts department. Check in your owners manual to see exactly which type of coolant to add to your vehicle. However just because it’s the same color doesn’t necessarily mean it’s the same type. Typically orange or yellow.Īs a quick guide, if your topping up the coolant levels, use the same color as is in the vehicle already. This has silicates and has an extended life lasting up to 5 years. Hybrid Organic Acid Technology (HOAT)- A mix of the above two types of coolant.Provides high-temperature protection for aluminum. Organic Acid Technology (OAG)- Found in most newer cars, does not contain silicates or phosphates but has azoles and neutralized organic acids (corrosion inhibitors).Lasts around 2 years. Usually bright green. Inorganic Acid Technology (IAG)-Typically used in older cars up until the mid-90s in the U.S, contains phosphates (corrosion inhibitors) and silicates.Coolant colors yellow and red 3 main types of coolant
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