Prixmax Sustainable Solutions Water-based technology. Since 1996 the PrixMax R&D Department has worked tirelessly in order to develop its unique OAT water-based formula that exceeds all relevant performance testing specifications for heavy duty engine manufacturers, and most importantly one that consistently delivers exceptional performance in the field. PrixMax has refined its formulated water-based coolants to a point where there is effectively no base fluid alternative that matches this formula for overall performance, cost effectiveness and environmental sustainability. All of the PrixMax Long Life Coolants are NAPS-free formulations, in that they contain no environmentally harmful nitrites, amines, phosphates, silicates, or any other potentially harmful minerals. The PrixMax Long Life Coolant solutions have been independently certified as readily biodegradable and non-toxic to marine life, and offer a significantly lower carbon footprint than other traditional coolant technologies.