Antifreeze is no exception to this rule with OEMs expressing new concerns over chemical compatibility. It's no surprise that OEMs recommend using only "genuine" parts and chemicals. Kurt Mittlefehldt, manager of materials engineering with Delphi, says even though some OEMs use the same type of chemistry, chemical concentration and the formulations are extremely dissimilar. And General Motors uses DEX-COOL®, an organic acid technology (OAT) formulation. Most Japanese automakers use a hybrid formula too, but it is vastly different. Major automakers have traded in inorganic acid technology (IAT) formulas and are developing their own extended life formulas for new vehicle models.Įd Eaton, chief engineer at Amalgatech, a professional automotive fluids and heat exchange independent testing lab, explains that Ford and DaimlerChrysler both use Valvoline G-05®, a European-style hybrid formula.
Today, new confusion has arisen from advancements in vehicle technology. We eventually learned color plays a miniscule role. In the late '90s, exotic color coolants caused confusion among consumers and automotive technicians regarding what hue should be added to a particular vehicle.
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