Star Brite 300,000 Mile Antifreeze Coolant – 50/50 Ready-To-Use


  • Ethylene glycol base.
  • Compatible with all antifreezes including orange Dex-Cool™.
  • Lasts for 5 years, 300,000 miles or 6,000 hours.
  • Protects all engine metals.
  • Reduces formation of abrasive solids to help extend water pump life.
  • Orange in color.



Caution: Do not remove radiator cap if engine is hot. 1. Check cooling system for leaks, loose connections or worn parts. 2. After making sure engine is cool, remove radiator cap, open radiator and engine block drains, and then flush system completely with clean water. 3. Close radiator and engine block drains when all water is drained out of system. 4. Fill radiator with desired ratio of antifreeze, making sure that the level is slightly lower than the filler neck. 5. Set heater on high and run the engine to normal temperature; the thermostat should now open, releasing any trapped air. If necessary, add more solution to fill radiator. 6. Finally, replace radiator cap and check for any leaks.

Do Not Dilute!

Star brite Extended Life Premium Coolant is a 50/50 ready-to-use mix.
For best results do not dilute!
Boil Over Protection 265° F / 129.4°C
Freeze Protection -34° F / -37°C


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