However, as time goes on, the coolant inside the radiator can become contaminated and old. It’s an important part of the coolant system. Info: AutoMD.The radiator is needed to help dissipate the heat coming from the engine. Even a small amount of coolant ingested by the family dog or cat can have serious consequences. The fluid has a sweet sort of smell and taste to it, which may attract pets. ![]() Most importantly, keep a sharp look out for coolant spills. Check the vehicle owner’s manual and be sure you use the recommended type of coolant.Ĭan I replace my vehicle’s coolant? Yes, but follow common sense safety procedures, such as wearing safety glasses. Always follow the manufacturer’s recommendation if you live in an area with extreme temperatures.Ĭan I just replace yellow coolant with yellow coolant? No. A 50/50 mixture represents a compromise between cooling efficiency and the ability to prevent the mix from freezing. Adding water to already-diluted coolant encourages rust and corrosion.ĭo I have to mix antifreeze/coolant with water to a 50/50 mix? That’s the ideal dilution for most climates. Squeezing the radiator hose can help determine deteriorating rubber (cracking) or leaks.Ĭan I just add water to the radiator? ONLY in an emergency. Best tip: the next time you open the hood, check the coolant level in the reservoir and give your radiator hoses a visual check and squeeze. San Diego County is considered a severe climate for engine wear because of traffic congestion, summer heat and cold in the higher elevations. Most new cars today operate with coolant good for 100,000 miles or more – but severe driving or other factors may change that. When should I check coolant levels? It’s a good idea to inspect the coolant level at every oil change. “Some say General Motors started it with the neon yellow hues of Dex-Cool, and others point fingers at VW and Audi for bringing over the coolant that had been used for years in Europe.” But there’s really no fun in that, said Hafer. It’s likely that manufacturers of coolant could have simply replaced green with green. A mix of IAT and OAT, the orange cocktail – and only the orange – contains 10 percent recycled coolant. This is also used today, and is usually orange or yellow. OAT uses longer-lasting inhibitors – organic acids – to protect engine components.) (Silicates are corrosion inhibitors used in the traditional coolant, but if the coolant is not replaced at the recommended interval, silicates could cause deposit build-up inside the cooling system. ![]() Colors are mostly red and orange, but also green, pink and blue.
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