Extended Life Coolant/Antifreeze 877770K1 is for use in all MerCruiser closed cooling systems in sterndrive and inboard gasoline engine applications. This coolant is pre-diluted to a 50/50 mix with de-ionized water. See your owner’s manual or service manual for specific application and instructions.
- 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.
