This product ensures a 6-year/600,000-mile lifespan and can be extended with the addition of Extender at 300,000 miles/3 years. It is free of Nitrite, Amine, Phosphate, or Silicate (NAPS-Free) and is suitable for all heavy duty engines.To use, simply add water and use at full strength. Each box contains 6 one-gallon bottles (3.78 liters) of pink antifreeze.
