Star Brite 30800 150,000 Mile Antifreeze Coolant - 50/50 Ready-to-Use - 1 gal Ethylene glycol base Orange in color Compatible with all antifreezes including orange Dex-Cool Lasts for 5 years, 150,000 miles or 2,500 hours Protects all engine metals Reduces formation of abrasive solids to help extend water pump life This product contains ethylene glycol and contains between 30 and 50 ppm denatonium benzoate as a bittering agent.