PEAK Original Equipment Technology Extended Life Orange 50/50 Prediluted Engine Antifreeze + Coolant for North American Vehicles is a premium coolant specifically designed to match the technology and color requirements of your North American vehicle and is formulated with the same corrosion inhibitor technology that protected your vehicle straight from the factory. PEAK OET North American Orange 50/50 Prediluted Extended Life Antifreeze + Coolant formula is based on proprietary organic acid technology (OAT), and is specifically designed to provide protection of your vehicle?s engine cooling system metals, including aluminum, against damaging rust and corrosion. It is compatible with other orange OAT formulations and is perfect for topping off your cooling system. This item contains a bittering agent called Denatonium Benzoate. This 1 gallon bottle is recommended for use with North American cars and trucks requiring an orange OAT coolant formula, including Chrysler vehicles from 2013 and newer, Ford vehicles from 2011 -2019, and GM vehicles from 1995 and newer. When installed as part of a complete flush and coolant fill, PEAK guarantees this coolant will provide service life protection of up to 150,000 miles or 5 years. PEAK?s parent company, Old World Industries, is an independent, family-owned business that has been a leader in the development and distribution of high-quality automotive products for over four decades. The PEAK brand has always been a little different - and always about the customers that are passionate about life and their vehicles. Over four decades of American ingenuity in developing world-class products that meet or exceed industry performance and quality standards. PEAK exists to deliver peak performance, so our customers get more out of their vehicles?and more out of life.