What Castrol makes for data centers
subsidiary · unit of BP
Ownership: BP brand
Castrol is a unit of BP. It appears on 2 parts of the AI data center — Single-phase dielectric and Direct-to-chip coolant (PG25) and inhibitors — in the role of manufacturer. Those parts sit in Layer 5 — Liquid cooling (IT-side: chip to CDU).
Exposure
2 parts across 1 layer
No disclosed data-center revenue share on file.
Parts, by layer
Layer 5 — Liquid cooling (IT-side: chip to CDU)
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Single-phase dielectric | manufacturer | inferred | ExxonMobil, Shell, Cargill, Engineered Fluids, Lubrizol | |
| Direct-to-chip coolant (PG25) and inhibitors | manufacturer | inferred | BASF, Dow, Ecolab (Nalco), Kurita, LyondellBasell, Shell |
Where Castrol sits in the stack
Castrol's placements in this catalog cover 2 parts, all in layer 5, liquid cooling (it-side: chip to cdu). None of them currently carries a sourced supply constraint tag. Across these parts it overlaps with other companies most often on the lines below.
What these parts are
- Single-phase dielectric — Single-phase dielectric fluids that stay liquid throughout the loop and are used mainly in open-tank immersion cooling systems.
- Direct-to-chip coolant (PG25) and inhibitors — Glycol-water coolant (PG25) and its corrosion/biological inhibitors, the standard fluid used in conventional direct-to-chip cold-plate and manifold loops.
Closest peers in this catalog
Latest feed
- Sponsored: Castrol launches Castrol CORE, an integrated thermal management offer for data centers — Data Center Dynamics, 2026-10-01Castrol has launched Castrol CORE, a thermal management solution specifically designed for data center cooling systems.
Questions about Castrol
- What does Castrol make for AI data centers?
- This catalog places Castrol on 2 parts: Single-phase dielectric (manufacturer) and Direct-to-chip coolant (PG25) and inhibitors (manufacturer).
- Is Castrol publicly traded?
- Not on its own — this catalog records Castrol as a unit of BP, so the traded entity is the parent.
- Who else makes single-phase dielectric for AI data centers?
- ExxonMobil, Shell, Cargill, Engineered Fluids and Lubrizol are also placed on Single-phase dielectric in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Castrol the mix is 2 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a lead from the taxonomy with no citation yet. Treat reported and inferred as leads, not facts.
Answers are generated from this catalog's own rows — see sources & method.