Anti Freeze 877770K1

Mercury Extended Life Coolant/Anti-Freeze 877770K1 is for use in all MerCruiser closed cooling systems in sterndrive and inboard gasoline engine applications. The extended-life formula provides 5-year / 1,000-hour protection, including freeze protection down to -34 degrees Fahrenheit (-36 C) and boiling protection up to 265 degrees Fahrenheit (129 C). Coolant comes pre-diluted at a 50/50 ratio with de-ionized water. Will not cause gelling. Meets ASTM D-3306 and D-4340. Safe for use in a range of engine-cooling applications. - For use in all MerCruiser closed cooling sterndrive or inboard gasoline engine applications - Extended life formula protects for up to 5 years or 1,000 operating hours - Ethylene glycol based, pre-diluted to 50/50 mix with de-ionized water - Will not cause gelling - Compatible with conventional anti-freeze but dilution will reduce extended-life benefits - Mercury oils, lubricants and engine care products are backed by decades of experience in engineering, testing and manufacturing to provide the best protection and performance.