Don’t neglect it – it’s a relatively quick and inexpensive task that can save you from costly repairs down the road. Replacing your engine coolant is a crucial aspect of maintaining the health of your vehicle. And if you notice a sweet, syrupy smell under the hood, this could be a sign of a coolant leak, and you should have it inspected immediately. If the coolant becomes dirty or discolored, it’s time to flush and refill the system. It’s also important to keep an eye on the coolant level and appearance. Your best bet is to follow the interval recommended by the manufacturer and use the correct type for your vehicle. However, if you drive in harsh conditions, such as hot weather or heavy traffic, you may need to replace the coolant more frequently. Certain coolants report being good for up to 160,000 miles or five years. Most manufacturers recommend replacing engine coolant approximately every 100,000 miles or every five years, whichever comes first. But how often should it be done? It depends on a few factors, but here’s a general guideline to help you keep your engine in top shape. Replacing your engine coolant is an important maintenance task that should not be neglected. The coolant selection must specify that it’s intended for your application to avoid compatibility problems. Keep in mind that the color of the coolant is not important. Silicated HOAT coolant – You’ll use this purple coolant for high-performance European models like Mercedes-Benz, Audi, Porsche, and some VW models.Phosphated HOAT coolant is a common coolant chosen by popular Asian brands like Toyota, Nissan, Honda, Hyundai, Kia, and Mazda.The coolant color is typically turquoise. Phosphate-free HOAT coolant – It’s used primarily by BMW, Volvo, Tesla, and MINI.HOAT coolant – Commonly yellow coolant, it’s intended for Ford, Chrysler, and many European brands.They’re usually orange but can also be dark green, red, pink, yellow, or purple, depending on the coolant brand. OAT coolant – General Motors, Saab, and Volkswagen vehicles.The common color of this coolant is green. IAT coolant – older vehicles across all makes and models, typically around 2001 and older.It provides the best protection against corrosion and overheating and can be used in a wide range of vehicles, especially those that use aluminum components. Hybrid Organic Acid Technology, or HOAT coolants, combines the best aspects of both conventional and long-life OAT coolants. It has a longer service life and is more environmentally friendly. It stands for Organic Acid Technology, and, as the name states, it uses organic acids instead of traditional inorganic inhibitors to resist corrosion. No, there aren’t any cereals involved in OAT coolant. The base fluid is ethylene glycol, containing corrosion inhibitors that are considered not organic, such as silicates. Your conventional, green coolant that many DIYers are familiar with is known as an Inorganic Additive Technology, or IAT coolant. Generally, there are three coolant chemistries that each will fit into. Each brand has its own lineup of antifreeze or coolant products in the automotive market.
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