Mobil COOLANOL™ 25R

Mobil COOLANOL™ 25R silicate ester synthetic dielectric heat transfer fluids are designed to meet the special needs of sensitive electronic components and environmental control systems in aircraft, missiles and spacecraft. The proven quality and reliability of COOLANOL is an important additional safeguard against costly and potentially catastrophic failure of critical airborne electrical equipment.

https://www.exxonmobil.com/en/aviation/products-and-services/products/mobil-coolanol