All coolants are naturally clear and the color is created with dye. Each manufacturer puts their own dye mixture into their coolant—it does not affect the chemical characteristics of the coolant. European manufacturers prefer coolant that is phosphate-free because the water in Europe is much harder than the water here in the United States. Many components of your BMW, Mercedes Benz, Porsche, Audi and Volkswagen engine and cooling systems are made of aluminum including the cylinder heads and radiators.
OAT coolants do not use silicate and phosphate corrosion inhibitors. These coolants have an extended service life and are designed for , miles of service or 5 years. Engine coolant, also known as antifreeze, is mixed with water to keep the radiator from freezing in extreme cold and overheating in extreme heat. Different vehicles require different coolants.
There are varieties for every type of vehicle, from diesel engines to American, Asian and European vehicles. Each one is specifically formulated to keep its designated engine type running in extreme temperatures.
Since coolant technology has evolved so much in the last few decades, if you own an older vehicle you need a formula with a special additive to allow chemistries old and new to work together. Each color is a unique formula that should not be mixed. Cars made before usually need antifreeze that isn't OAT-based and that does contain silicate. We sell all the best types of antifreeze on the market. Take a look online and select 'click and collect' to pick it up from your local Halfords.
Or, if you prefer, you can arrange for it to be delivered. Car maintenance is really important, so don't forget that if you're unsure whether anything needs topping up, take advantage of our free 5 point car health check at your nearest store. Please enable cookies in your web browser to improve your shopping experience.
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