Sustainability Magazine July 2025 | “As new technologies come along, it’s really important to find partners that you can collaborate with”

CASTROL

“As new technologies come along, it’s really important to find partners that you can collaborate with”

NICK BARRETT,

SENIOR ENGINEER DATA CENTRE TESTING, CASTROL

These partnerships extend across the entire cooling infrastructure, with Castrol working very closely with cooling system manufacturers, those who make the immersion tanks and the people who make the servers. This approach puts Castrol at a competitive advantage to drive the industry forward.

“What also makes us a leader is the fact that we’re already quite active in data centre cooling,” Stephen adds.

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CASTROL

To address these challenges, Castrol has established partnerships with key players in the ecosystem. One such partnership is with Unicom Engineering, a company that designs liquid-cooled servers specifically for AI and machine learning environments.

Austin Hypes, Chief Technologist and VP of Engineering at Unicom Engineering, describes the partnership: “We are designing a whole series of liquid cooled servers, primarily for AI and machine learning environments. We require very high-performance dielectric fluids to cool our server designs.

“There is a lot of back and forth collaboration with Castrol. We have certain needs and characteristics of dielectric fluids to meet not just thermal performance, but signal integrity performance.”

Driving market confidence To facilitate the industry’s transition to immersion cooling, Castrol has invested in a state-of-the-art testing facility at its Pangbourne technology campus. This facility is designed to demonstrate the company’s commitment to the data centre market.

“Overall on the technology campus, we’re actually investing up to £50m (US$60m) in building up new testing equipment,” Chris reveals. “We’ve built out this data centre wing with a number of different cells, where we’ve got different immersion cooling technology all working on our Castrol fluids.”

Nick Barrett, Senior Engineer

Data Centre Testing, Castrol

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