N9125L Napa Ultra Longlife Lilac 40 5L - 100% Concentrate High performance 5 year universal engine coolant, suitable for all year round usage in automotive and commercial petrol and diesel engines and certain industrial applications. Must be diluted before use: Example 50/50 mix provides -40C Freezing Protection Organic Acid Inhibitor Technology Free from nitrites, amines, phosphates, borates. Superior silicate stabilisation technology