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Shell Diala

Shell's Diala range has been upgraded with the introduction of Shell Diala S4 ZX-I.

A new GTL-based product engineered for SHELL’S optimum performance in the latest generation of transformers.

Like before Shell Diala S4 ZX-I offers enhanced protection, longer oil life and greater efficiency. It meets the specific demands imposed by the reduced size, increased loads, higher voltages and longer operational lifetimes of today’s transformers.

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  1. Shell Diala S4 ZX-I

    Shell Diala S4 ZX-I

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    Shell Diala S4 ZX-I previous Shell Diala B, S2 ZX-I

    Premium insulating oil based on Shell GTL technology for transformers

    Advantages of the Diala S4 ZX-I are:

    • + High Performance, excellent heat transfer and dielectric properties
    • + High Oxidation Stability
    • + Resistance to the effects of ageing, sludge formation and deposit build-up

    Shell Diala S4 ZX-I is Shell's premium insulating oil. It has been designed to meet the needs of the latest transformer generation. The product offers a longer oil life. It is sulfur free and therefore meets existing and future copper corrosion tests. Shell Diala S4 ZX-I is made from a sulfur-free base oil produced using the Shell GTL (Gas-to-liquids) technology. 
    We also know that it is used as Immersion Cooling Fluid for cooling servers as used in cloud computing, blockchain and crypto mining.
    This base oil is characterized by a uniform molecular structure and a very good response of antioxidants. It is globally available and independent of different crude oil deposits due to its manufacturing process. Shell Diala S4 ZX-I is free of PCB, DBDS and Passivators.

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    Starting at: £ 3.78 / L
  2. Shell Naturelle Transformer Fluid S4 I

    Shell Naturelle Transformer Fluid S4 I Future name Shell Panolin S4 Transformer

    Quick ordering

    Shell Naturelle Transformer Fluid S4 I

    Advanced synthetic electrical insulating fluid

    Applications Shell Naturelle Transformer Fluid S4 I

    Industrial transformers. Electrical insulating fluid for power and distribution transformers, which may have advanced requirements regarding environment and fire protection e.g traction transformers and wind turbine applications.

    Transformers in electrical locomotives. Insulating and cooling fluid for mobile railroad transformers.

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    £ 8.57 / L

Enhanced protection Shell Dial S4 ZX-I

Oil is at the heart of your transformer. The Shell Diala range presents a number of options for the best possible protection The new Shell Diala S4 ZX-I exceeds IEC 60296:Ed 4 2012 highest oxidation stability, low sulphur specification. In fact it has essentially zero sulphur (below detection limits) which means that the risk of oil related copper corrosion is removed.

Longer oil life: Shell Diala S4 ZX-I transformer oils are designed to last

supporting the extension of your transformer lifetime. Shell Diala S4 ZX-I exceeds the 500-hour oxidation test limit and extends oil life through its exceptional resistance to the effects of ageing, sludge formation and deposit build-up.

Greater efficiency with Shell Diala S4 ZX-I

For optimum transformer performance, electrical insulating oil must maintain its characteristics over a wide range of operating temperatures. Theorectical modelling predicts that Shell Diala S4 ZX-I could deliver improved operational performance under overload conditions due to enhanced thermal properties.


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