HD Extra is specifically designed for complete mixed fleet use in all makes and models both foreign and domestic, for light duty and heavy-duty diesel.
MIXED-FLEET GLOBAL EXTENDED LIFE FOR ALL VEHICLES; AUTOMOTIVE, LIGHT TRUCK & HEAVY-DUTY DIESEL

• Compatible with all engine coolant technologies
• Nitrite, 2-EHA, Amine & Phosphate Free
• Powered by ProShieldTM OAT Corrosion Defense – engineered for newer cooling systems
• EXTRA Mixed-Fleet Global Extended Life – recommended for use in all makes and models of passenger vehicles, light duty, and heavy-duty diesel vehicles (on-road, off road, construction, farm applications)
• Protects against rust and corrosion for all coolant system metals, including aluminum
• Excellent protection against wet sleeve liner cavitation pitting
• Automotive Light Duty: Up to 250,000 km (150,000 miles) or 5 years
• Heavy Duty Diesel: Up to 960,000 km (600,000 miles), 12,000 hours, or 6 years

HD Expert EXTRA Antifreeze/Coolant is powered by ProShieldTM OAT Corrosion Defense system, a proprietary organic acid technology (OAT) corrosion inhibitor package that DOES NOT contain 2-EHA and is nitrite, borate, amine, and phosphate free. Designed for use in all makes and models of passenger vehicles, light duty and heavy-duty diesel vehicles including on-road, off road, construction, and farm applications. It provides protection against rust and corrosion for all coolant system metals, including aluminum, excellent protection against wet sleeve liner cavitation pitting and is compatible with all aluminum radiators found in today’s engine cooling systems.