Coolants
Product Data
castrol.com/GPS
800 255 4417
May 2025
GPS
Castrol
®
Radicool
™
SF-O Premix
Typical Characteristics
Test Method Results
Appearance Visual Clear Liquid – Red
pH, Engine Coolants / Antirusts ASTM D1287 8.6
Boiling Point ASTM D1120 226 °F (108 °C)
Freezing Point ASTM D1177 -34 °F (-36 °C)
All reasonable care has been taken to ensure that the information contained herein is accurate as of the date of printing. Freedom to use
any patent owned by Castrol® or others is not to be inferred from any statement contained herein. Test results listed are typical
properties only. Formula and blending changes may result in slight color or appearance changes.
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