GUIDE TO COOLANT ANALYSIS AND COOLING SYSTEM …

GUIDE TO COOLANT ANALYSIS AND COOLING SYSTEM MAINTENANCE. COOLANT FORMULATIONS & RECOMMENDED TEST PACKAGES. Conventional COOLANT Extended Life COOLANT Extended Life COOLANT Automotive, Light Duty & Heavy Duty engines (1st Generation) (2nd Generation). Ethylene glycol, propylene glycol or glycerin base (OAT, NOAT & HOAT) (NAP-Free or NAPS-Free & P-OAT). Inorganic inhibitor package for metal corrosion and cavitation pitting protection Organic Acid Technology (OAT) North American & European Formulated Coolants Typical color: Orange Typical color: Red Components Automotive and Light Duty Heavy- and light-duty diesel, natural gas, and Typical Color: Green/Yellow, Pink, Blue, Purple Controls corrosion gasoline engines Ethylene/Propylene Glycol or Glycerin based Nitrite, Amine, Phosphate Free Freeze point suppression Nitrite Organic Acid Technology (NOAT) Combination of organic acids as inhibitor package Boil point elevation Typical color: Red/Orange Requires a different glycol curve than Borate Heavy Duty engines traditional COOLANT Iron protection Nitrite added for cavitation corrosion protection pH buffer P-OAT (Asian Formulated Coolants).

50% for boil point control • Engines operating at 10,000 ft. and above should ... • pH control Modified Silicone Defoamant • Inhibit foaming tendencies ... • Visuals (color, foam, oil, fuel, magnetic precipitate, non-magnetic precipitate, & odor) • pH • Glycol %

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  Analysis, System, Control, Silicone, Foam, Cooling, Coolant, Coolant analysis and cooling system

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